Archaeological Classification of Age of Sail Shipwrecks Based on Genever’s Material Culture

: This article analyses archaeological evidence for jenever (spelled genever in English) in the Dutch Republic during the Age of Sail (1550–1850). Although excessive alcohol consumption among mariners is a stereotype, there has been surprisingly little critical scholarly work on the subject. Genever was used on ships for medicinal purposes during the seventeenth and eighteenth centuries, but no thorough analysis of alcohol consumption broadly in a Dutch (VOC, WIC, Admiralty) maritime context has been done to date. Since the Dutch stored genever in a distinctive bottle, the archaeological record is helpful to examine Dutch ship’s genever consumption. This article theorises that material evidence of genever for personal consumption and as a commodity for export can be used to aid in identifying a shipwreck’s nationality, and that hypothesis is tested through analysis of a sample of European wrecks excavated along the global shipping routes of Dutch commercial and naval sailing vessels. There is a strong correlation between the presence of both case bottles ( kelderﬂessen ) and, later in the period, stoneware bottles ( jeneverkruiken ) with Dutch shipwrecks or maritime archaeology sites and this is strongly suggested to consider for archaeologists faced with a shipwreck of unknown origin


Introduction
Des Zeemans allerbest Compas Is een gevult Jeneverglas: a line from an old Dutch poem saying that translates roughly into 'a sailor's best working compass is a glass full of genever' (Dutch gin) [1] (p. 22). 1 This aphorism underscores the centrality of alcohol generally, and genever specifically, as a key commodity aboard ships during the Age of Sail (1550-1850), both as a product for export and as an essential beverage consumed by the sailors who transported it.By the late seventeenth century, a precursor to today's gin was drunk in large quantities in Holland under the Dutch term jenever, translating from the Dutch term for juniper berries.However, despite the low cost, it was not until the eighteenth century that genever exports reached a significant volume [2].
Throughout the Middle Ages, beer, wine, and water were the predominant shipboard ration liquids for European sailors, but each had their drawbacks.Water was hard to keep fresh, beer spoiled quickly, and wine was expensive.Due to global exploration and expanded trade networks with Africa, the Americas, and the Indian and Pacific oceans, European trade shifted from short haul Mediterranean or Western Atlantic coastal transits to long voyages that lasted months, or even years.Ships' companies consequently required liquid rations that were both durable and concentrated, and distilled beverages met these requirements [3].So-called 'hard' alcohol grew to be a significant economic commodity and its large-scale production, taxation, and transportation developed throughout the Age of Sail.
Aqua vitae and other spirits were consumed throughout Europe during the medieval period after the practice of distillation was adopted from Arab nations.Such distillation was done for purely medicinal purposes and Johannes van Aalter first mentions distilling wine to aqua vita in 1351 for treatments.In the thirteenth and fourteenth centuries, as distilling became more sophisticated and spread across Western Europe, different regions created their own unique beverages.'Whiskey' emerged as the Gaelic term for Scandinavian aqua vitae, while the Germans had their own version of 'brandywine'.The term brandewijn (burnt wine) became, before the sixteenth century especially, a term used generically for all types of distilled spirits as well as a French grape-based brandy.By the fifteenth century these distilled spirits, especially brandy, were a staple in the Low Country [4][5][6].This brandy was the predecessor of korenbrandewijn, a grain-based distilled spirit, and then jenever flavoured with juniper, which later became the dominant drink throughout Holland.
'Juniper berry water' was first mentioned in 1552, by M. Philippus Hermani in Antwerp in Een Constelijck Distileerboec [7]. 2 Over the following decades, as the Little Ice Age cooled Europe's climate, grape vintners struggled to make wine and grape-based spirits.Flemish distillers moved into The Netherlands, after the fall of Antwerp, and brought with them their production knowledge of spirits.Since Dutch ports, especially Amsterdam, were grain import centers, distillers could make genever cheaply using surplus or spoiled grain stock and export it quickly because they were based in port cities [8,9].Franciscus de le Boë Sylvius, a doctor in Leiden, describes a juniper berry drink (genièvre) in 1650 and jenever eventually appeared for the first time in the Dutch National Dictionary in 1672-though the term brandewijn was still commonly used instead [10].Jenever's production grew enormously along with the expansion of the global Dutch economy.In the 1680s, The Netherlands exported 45 million L, mostly to England.By the end of the eighteenth century, the Dutch were producing 63 million L annually and there were 250 distilleries in Schiedam, where there had been only 37 in 1700 [11,12].
By the nineteenth century, genever consumption was impressively high in The Netherlands and it was known as the drink of the common man.At the start of the century, the Dutch drank twice as much alcohol per capita as Britain, Germany, and France [2,13].Maritime demand and overseas markets were a major driving-factor in genever's rise.

Dutch Maritime History with Genever
Genever became ubiquitous in Holland not only as a drink for commoners, but also as a staple on Dutch ships.The rise of genever in The Netherlands went hand in hand with an increase in Dutch maritime activity globally.Flemish distillers had been moving into The Netherlands around the same time that the Vereenigde Oostindische Compagnie (VOC) and the Westindische Compagnie (WIC) received their charters.As the Dutch colonised overseas and imposed their economic imperialism worldwide, they sold genever with them around the world and it grew famous as the 'Holland Gin' [14].As Robert Hennebo said in the eighteenth century, 'what ship would stand out from the Wall, if there were no gin [1] (p. 21)?' The VOC, in particular, used the spirit as both cargo and provision.Strong spirits were issued for sailors not for intoxication but for health reasons and usually had to be consumed in front of officers [15,16].
Aboard its ships, the VOC issued fixed rations of food and drink.In the seventeenth and eighteenth centuries, ships were provisioned for 20 to 30 months at sea but later, as more intermediate ports of call developed, the provisioning interval fell to 9 months.Throughout the seventeenth and eighteenth centuries, the minimum daily ration amounts remained largely unchanged [17].Beer and water tended to be unlimited while stocks lasted, but wine and spirits were controlled [18].Actual ration amounts varied widely by ship, time period, and even time of year, so each voyage should be considered on a case-by-case basis.Some general trends do appear, however.Junior officers (boatswains and above) were allotted double drink rations while senior officers (captains and mates) and passengers were exempt from any restrictions and ate separately.Deck officers were allowed to bring their own stock of genever, usually two kelders (cases with 12-15 bottles), and wine [19,20].
The regular crew, on large ocean-going vessels, was divided into bakken (messes) of seven and ate together.Their drinks were meant to be handed out in small measures to prevent drunkenness, but in practice this does not seem to have happened, and there is evidence of the stronger drinks being used for intoxication.Additionally, many sailors were allowed their own private store of alcohol.A vaatje (a keg) of 20 L of genever was commonly provided in a VOC sailor's recruitment package (clothing and supplies needed for the voyage) and in the Dutch navy every man usually brought a vaatje of genever as well as purchasing more from the ships' stores later in the voyage [20][21][22].
In the seventeenth century, genever was becoming more common aboard ships, but it was still not as common as beer or brandewijn.The 1615 voyage of 't Wapen van Amsterdam notes two mutsjes (0.30 L) of korenbrandewijn daily in the colder climates [23].By the eighteenth century, however, genever was the more popular ration aboard Dutch vessels, and arrack was often used on the return voyages [17].An oorlam is sometimes listed as the name for the genever rations (around 50 mL), a term that, coincidentally or not, was also used to refer to an old seaman [24] (p.154).
The VOC used the spirit for daily health rations and the still famous Bols company, established in 1575, became one of the suppliers of these 'fine waters' to the company by 1719.In 1713, the VOC's Lyste en Reglement notes three fleskelders (wooden cases for square bottles) of genever allowed on board.A 1724 VOC ration list, for one month, provided 75 mL of brandy every other day after the flapkan (1.5 L) of water and one quarter-barrel of beer was gone [7,21,25].By 1730, genever was often shipped with lepelblad (scurvy grass) for its supposed antiscorbutic health benefits [26].In a 1760 Dutch book written on 'means for preserving health on warships', the author notes that sailors should be given brandy daily and for scurvy should be mixed 1/6th with lemon juice [27] (p.12).
Based on some ships' success at preventing scurvy, a common health problem on the long voyages typical of the Company, in 1742 genever replaced korenbrandewijn or brandewijn on ration lists.One year before, the Amsterdam Admiralty required that all sailors must be given as much genever as the Captain allowed for their health.Many estimates of VOC rations put the amount of genever at 1 /2 mutsje to 2 mutjes (0.30 L) a day from 1760 until the end of the Company [20,22]. 3 A 1762 Dutch Admiralty College document details a debate examining whether, and to what extent, genever should be included in ship rations.This debate came after several successful voyages in the West Indies, where crews returned healthy with many citing genever as the reason.The Admiralty ultimately decided to allow genever rations, based on cost versus benefit calculations, but the document is valuable because it contains genever provisioning information.Ships of 40 stukken (directly translates to 'pieces', referring to cannon) were given 24 ankers of genever.An anker, at the time, was around 38.4 L. In the eighteenth century, West Indies voyages conducting triangle trade usually lasted around 18 months and as previously mentioned, had crews of around 40 (with genever rations of just under 50 mL a day per person if split evenly).A 1781 document from the same archival bundle notes a ship of 60 stukken received 60 ankers (240 L) for 12 months [28][29][30]. 4 Other, more personal, primary sources for the eighteenth century also mention Dutch genever and sailors.In 1732 Jacobus Carlier notes that as long as the genever was flowing, the sailors were drunk on it [20] (p.129).A 1775 sailor's song titled Zeemansliedje: Jan die sloeg Lijsje, says 'Een oorlam aan de klok, Kunt gy ook krygen' (an oorlam on the clock, you can also get') [31] (p. 7).William Hickey, a passenger on a Dutch East-Indiaman in 1780, noted that the captain washed down breakfast with a full glass of 'the favorite liquor, gin'-after consuming three small beers during the meal [32] (p.229).Hickey relates that their midday meal was even more substantial, and perhaps the gin consumption was too.The captain drank throughout each day, though Hickey 'would not dare to guess how many sopekys (a small glass)' the man drank before dinner.He never seemed drunk, however.Hickey recalls that the servant was 'in perpetual motion with the gin bottle and glass' [32].
In 1899 the government attempted to curb the chronic drunkenness of Dutch sailors by only allowing alcohol rations to sailors over the age of 20.By 1905, liquor rations were abolished by royal decree [33].This debate was not limited solely to the Dutch among European nation's navies.Government control of sailors' alcohol consumption also occurred in the British Royal Navy.

Methods
If Dutch sailors in the Age of Sail were drinking genever and the ships were also used to export the spirit, then the archaeological record should reflect this with a high level of genever material on Dutch shipwrecks.Methodologically, this can be tested using a combination of historical and archaeological evidence.Historically, as shown in previous sections, cargo lists, ration lists, and shipboard journals and diaries can indicate when and how much alcohol was consumed onboard.The historical information is vital because it indicates the presence of genever on Dutch ships, but is not always clear in the type of vessel that it was consumed from.
Archaeological analysis does, however, reveal what type of drinking vessels were aboard ships.To determin if certain vessels were unique to the Dutch and to genever, this paper will evaluate Dutch shipwrecks in a variety of locations as well as shipwrecks of other nationalities to see if only the Dutch vessels contain case bottles, and in the later period, stoneware bottles, and see if it is possible to determine that they contained genever and not other liquids.Sites that have had scientific excavation, and with published information and artefact catalogues that the author could consult independently, are the most useful for this study.For ethical reasons, wrecks that have been plundered or salvaged by treasure hunters have not been examined, unless they have also been studied scientifically, in which case only the professional archaeological reports have been used.
A sample of shipwrecks was chosen for this purpose. 5This sample is formed by a large number of British, Portuguese, and French wrecks dating from the seventeenth to nineteenth centuries have been located and archaeologically assessed, representing a wide geographic spread and detailed archaeological reports.The dates for the chosen wrecks characterise a time before mass globalisation and trade started in the mid-nineteenth century, thus making it easier to assign specific, limited nationalities to diagnostic artefacts.Each of the following wrecks will be evaluated for their artefact assemblage and whether they contain stoneware vessels, case bottles, or both.

Dutch Archaeological Record
Material culture complements the historical record of genever by providing further insights into alcohol and its consumption by the Dutch.The archaeological record shows trends in material goods, including the presence of case bottles and stoneware drinking vessels on nearly all known and studied Dutch wrecks from this period.So, what does the presence or absence of case bottles or stoneware on shipwrecks of the sixteenth through nineteenth centuries suggest about genever consumption on Dutch or other European vessels?
Dutch consumption and transportation of genever appears in the archaeological record in two distinctive beverage containers.Firstly, mostly green glass, square case bottles became synonymous with the spirit and were used to transport genever all over the Dutch maritime world and beyond.Additionally, in the late eighteenth and early nineteenth centuries, genever was consumed on ships in stoneware jugs more often, mirroring the transition to ceramic bottles that occurred on land. 6The relatively high concentrations of genever-related artefacts on sites shows the prevalence of this spirit in the Dutch world both for trade or for consumption as a commodity and as part of a sailor's daily life.
Large-scale glass production began in The Netherlands around the same time that the Dutch were emerging as a world maritime power in the mid-seventeenth century [35].At this time, green glass was commonly used for bottles, especially in Rotterdam, but it was actually in the sixteenth century that the square bottle form started production, initially as small bottles, roughly 15 cm tall.Later, they measured up to 28 cm tall, and by 1656, they were packed into cases for transport.They were known as kelderflessen, named for the cases (kelder) that they were stored in as groups of 6, 9, 12, or even 15 [35,36], as seen in Figure 1.By the eighteenth century, the fine glass industry was thriving and by 1736 most Dutch glass container factories were making these green case bottles seen in Figure 2.They were first used to bottle spirits (beer was not bottled in glass until later in the century).As genever grew in popularity, so did the style of bottle it came in [12,35].By the nineteenth century, Dutch case bottles were used for the export of gin rather more than domestic consumption where stoneware storage was standard, as noted by Dutch archaeologist Wil Nagelkerken. 7 The other way liquids, and especially alcohol towards the end of the Age of Sail, were transported by the Dutch was in stoneware bottles [2] as seen in Figure 3.These bottles could also indicate genever consumed by sailors and domestic residents in The Netherlands, especially in the period of the liquor's popularity.By the eighteenth and early nineteenth centuries, large amounts of Westerwald stoneware bottles were filled with mineral water in Germany and brough to The Netherlands.The Netherlands imported this drinking water in stoneware kruiken and some distillers started using the bottles for genever too.Around 1850 The Netherlands stopped importing waters, after municipality-supplied sources were installed, and stoneware bottles usage for only genever greatly increased [37]. 8Although the presence of this stoneware on archaeological sites does not indicate consumption of gin as obviously as case bottles do (since stoneware jugs and bottles were used for other purposes), it could reflect crew drinking.Nagelkerken shows nineteenth-century stoneware bottles, examples shown in Figure 4, in his site report of Bonaire's historic anchorage, many with manufacturer stamps from Weesp and Schiedam [39] (p.39).One of the bottles was stamped 'Blankenheym & Nolet', referencing Carolus Blankenheym who started distilling in Rotterdam in 1714, and a later dated bottle stamped with 'Blankenheym's Very Old Gin' [39] (p.80).An earlier example of a stoneware genever bottle (jeneverkruiken) can be seen in a bottle fragment dated 1775-1850 found in Amsterdam with the words 'Weesp Gin' stamped on it as seen in Figure 5   Dutch shipwrecks and maritime-related sites have been archaeologically identified mainly in the Caribbean and various points along the VOC trade routes from European waters to the Indian Ocean and Asia.Through Dutch global shipping, commerce, and colonisation the beverage was consumed in the West Indies, the East Indies, domestically in Holland, and everywhere else in between.This speaks to the universality of Dutch genever consumption.
Dutch maritime sites in the Caribbean, are more common terrestrially, as the water conditions do not tend to preserve shipwrecks well, apart from a WIC vessel discussed later.On some major trading islands' anchorage spots (Sint Eustatius, Bonaire, and Curaçao) there is ample evidence for both case bottles and stoneware bottles, but it is difficult to assign a specific ship context to any. 9 The Caribbean was a melting pot of cultures and trade squeezed into a small geographic region during the Age of Sail and diagnostic artefacts associated with particular national or geographic trends are less reliable in such internationally blended contexts, although the presence of stoneware bottles and case bottles together is representative of a probable Dutch context or site.
The second main source of archaeological sites where Dutch maritime culture predominated, and more reliably so than in the Caribbean, is the wrecks of East India Company (VOC) vessels.These shipwrecks are found all over the world, especially along the trade routes of the VOC.Unfortunately, because of their valuable cargoes, these sites are particularly prone to looting and salvaging-some even disturbed with the Dutch government's permission [42].Although a complete record of known and studied wrecked VOC ships is hard to obtain, many general trends are evident.A few of these shipwrecks are introduced and their artefacts are discussed in this paper.

Shipwreck Data
Table 1 shows the shipwrecks discussed in this paper.The wrecks are placed in chronological order, with their date of wrecking and wreck location, as well as the nationality of the vessel.The presence of case bottles or stoneware material is also noted.Following the table, is a discussion considering the results shown in the table.

Dutch Case Bottle Evidence
On nearly all of the Dutch vessels, evidence of case bottles is presented in the archaeological reports.As mentioned, kelderflessen are one of the most obvious forms of evidence for genever presence on a ship.This spirit could be onboard for crew consumption or for export.Starting in the sixteenth century, these green square bottles are found on Dutch ships.The Scheurrak S01 vessel shows evidence of glass case bottles on a ship that was part of the sixteenth-century Baltic grain trade with a cargo from Poland [44].Other examples of case bottles on regional trade vessels include the eighteenth-century probable Dutch shipwreck off of Finland.Most objects recovered were from the galley area between the main and mizzenmast and along with onion-shaped wine bottles, square case bottles were discovered [67].
Case bottles are evident on Admiralty ships too with the Utrecht containing at least one complete case bottle [47] (the author belives possibly with Schiedam printed along the base) and the Curaçao showed scattered sherds of stoneware, a glass onion bottle, and a green glass case bottle [56].
The shipwrecks of the VOC provide several examples of case bottles onboard and give insight into the spatial context of the bottles.Unlike smaller merchant vessels, VOC ships were large enough to have designated cargo spaces and, on some wrecks, enough of the vessel survives to place artefacts in their original location.The Batavia collection includes pewter bottle tops, associated with case bottles, as well as square case bottle bases and necks [45].Additionally, in Australia, the Vergulde Draeck shows two groups of glass case bottles were found with their associated pewter screw tops, and it is noted that there seem to be no onion-bottle remains.The large amount of case bottles grouped together suggests perhaps they were packed in their wooden cases when wrecked, but the wood has disintegrated.Archaeologist Jeremy Green suggests that these bottles probably held wine since the liquid was ordered in large quantitates for the Indies [48,49] (p.226).It is likely that they held spirits, though.Although genever was not on the VOC ration list at the date of sinking, there is contemporary evidence from a 1656 VOC provision list of brandewijn [48] (p.375).
During the Anglo-Dutch wars (1652-1654, 1665-1667, and 1672-1674), VOC ships were forced to sail to Asia via a more northerly route around Scotland and Ireland to avoid the English Channel [46].These vessels have case bottle evidence as well.Although there were no glass finds on the Zeepard, excavators did recover pewter bottle top reinforcement rings [46].These were used by many European merchants to pack glass bottles and protect their necks during travel.The same type of rings were found on the Vergulde Draek, and it can be assumed they, similarly, were used to protect square case bottles.The Blind Harbour Wreck likewise had nine pewter bottle protective rings among the finds [46].
The Adelaar finds include a green bottle base, a small piece of a bottle neck, four white glass bottle toppers, and a wine glass [55].The Rooswijk wrecked with 15,000 L of beer, wine, and genever and in what the excavators think is the probable the cargo hold area, there were onion bottles, case bottles, and stoneware jugs that would have been part of a sailor's allowed 1 litre of beer and 1 mutsje of wine or genever [58].
A VOC shipwreck that provides evidence from an outbound voyage is the Hollandia.General cargo items included globular-shaped 'onion' bottle (still filled with wine), brass taps for barrels, and the square green glass bottles with pewter caps that indicate case bottles [26,59].The officer cabin area contained a brandewijn pimpeltje (0.018 L).This vessel and the Amsterdam provide valuable insight into VOC East Indiamen and the culture onboard the ships, which included alcohol.Historical evidence tells us they were issuing alcohol on VOC ships, but without the cargo lists it is hard to know what Batavia-bound cargo was and what was intended for crew and passengers.The Amsterdam was provisioned for 300 men for at least a six-month voyage and was noted to be a typical large East Indiaman [26,34,61,72].Additionally, being a typical Dutch ship, it was full of alcohol.In contemporary reports of the vessel's sinking, it was noted that many of the crew broke into these alcohol supplies and were drunk by the time the vessel went down.
Research on the Amsterdam shows that stoneware made in the Low Country and square glass bottles were taken from the wreck in the nineteenth century.Other finds came from a limited area but include the galley, gunroom, and a medical chest.There were 'a great many thousand dozen' bottles of wine in chests, some French and many with liquid still inside [72] (p.75).There were case bottles in the hold area as well.Here, Peter Marsden found more stoneware jugs that held genever and green glass square bottles with corks that probably contained wine or genever.Marsden states that 'the presence of many hard-fired stoneware jugs in the excess cargo area makes it likely that she was carrying a quantity of spirits, most probably gin' [72].
For other vessels, historical information can also be combined with the material finds to further inform analysis.The Vliegend Hart excavations found glass onion bottles and stoneware seltzer bottles, as well as a tap for water or beer barrels [57].Additionally, a square case bottle with a tin top was found.In the archival records for the ship's first voyage in December 1730, the victuals included 97.117 L of water, 5625 L of beer, 2300 L of French wine, 4608 L of Cape wine, and 697.5 L of korenbrandewijn.Korenbrandewijn is essentially genever without the juniper flavouring and would be represented in the case bottles.
Due to legal disputes after the wrecking of the Kennermerland, there is a wealth of historical information about the ship and its cargo.Throughout the course of excavations, many alcohol-related artefacts turned up, causing archaeologist Keith Muckelroy to remark that 'perhaps the most striking feature is the quantity of liquor'.Archival sources show there were an estimated 1604 gallons of brandewijn onboard the vessel at the time and Muckelroy theorises that some was cargo, and some was for the crew [51] (pp.284-286).The artefacts included case bottles and Bartmann jugs (though at least two of these definitely contained mercury) and the bottles were found apart from a large collection of pipes, which would have been cargo for trade in Asia, and separate to artefacts that were most likely personal belongings.There was green glass all over the site and nearly all the bases recovered were square.

Dutch Stoneware Bottle Evidence
The evidence for genever presence on ships is less obvious when looking at stoneware material.As mentioned, stoneware bottles were used to store genever towards the end of the Age of Sail.Some archaeologists, including Marsden, have said that Bartmann stoneware jugs could hold alcohol (and genever). 10Dutch paintings from this period show Bartmann bottles in tavern and home-drinking scene as well [73] (p.11).Others, for example those on the Avondster project, argue that smaller, more simple than a decorated Bartmann, jugs were used for storing alcohols, oils, and wines and thus are found on many shipwrecks.It is difficult to prove what was inside the jugs found on shipwrecks and the historical evidence does not indicate whether genever rations were issued from kelderflessen or kruiken.Chemical analysis would be the most helpful method to interpret the use of bottles on shipwrecks, but it is not often possible.Without stamps, the shape alone does not indicate the contents of the bottle either [38] (p.72).Additionally, the bottles could have been reused to store other liquids.Without further analysis or supporting historical documentation, the exact quantities of the bottles will not be known.Nevertheless, there are many examples of stoneware storage jars and bottles in the cargo area of Dutch ships and historic evidence to support alcohol onboard as cargo and provisions.
On Scheurrak S01, among the 5000 artefacts from the wreck were Bartmann jugs from the Rhineland region found with the glass case-bottles.On the Batavia were a large array of stoneware jugs with medallions and in a variety of styles.The main group were Westerwald-Type blue-grey stoneware jugs and there were also some complete Bartmann style jugs.Ceramics from the Vergulde Draeck were mostly stoneware jugs of the salt-glazed Bartmann style and other plain stoneware jugs [44,45,48,49].On these ships, the presence of case bottles and stoneware jugs may provide evidence of spirits both issued to the crew and also in the general cargo.
The VOC's Avondster's midship galley and crew area show a mix of Asian and European stoneware storage jars, including the Bartmann variety [50].These were found near the galley area and thus would have held provisions of all sorts, not just alcohol.The vessel was returning to Europe from Asia and thus there would not have likely been any case bottles onboard but there were cylindrical wine bottles found.On the Zeepaard, the neck of a Bartmann jug, as well as one partial and two complete vessels, were among the ceramics finds [46].
On the Hollandia, personal items and tableware included sherds of Bartmann jugs and other salt-glazed stoneware [26].On the Amsterdam, the hold and the main hatch area of the ship also contained items related to alcohol.Here, Marsden found more stoneware jugs that he believes held genever and green glass square bottles with corks that probably contained wine or genever [72].The date of the Amsterdam (1749) supports the general narrative of substantial Dutch genever exports.High eighteenth-century rates of genever production suggests that genever could be the liquid in these ceramics.
The Utrecht wreck contained stoneware bottles [47] and after consulting the artefact catalogue it seems some possibly had 'Herzogthum Nassau Selters' stamped on them indicating mineral water.On the Curaçao, three stoneware jugs were also found, though they contained oil [56].On the Jonge Seerp, most of the artefacts were found in the bow and midship area.Of the ceramic material, 14 percent were stoneware storage vessels, including bottles and jugs, from Frechen makers [67].The site reports do not include obvious evidence of case bottles onboard, but there was evidence of wine consumption.Given that the vessel was not a VOC ship, and was probably used for Dutch European coastal trade, it would be unlikely that genever was a high export cargo (since the ship was not supplying overseas colonies) and it may have only been stored in the stoneware.The English East Indiaman Sussex was caught in a storm and sank off the eastern coast of the Cape of Good Hope [74].The cargo mainly consisted of porcelain ceramics and no stoneware was noted.Approximately 15 fragments of dark green bottle glass were recorded, described in the report as 'characteristic of the period' by archaeologists with the French Ministry of Culture [74] (p.83).It is unclear if this included case bottles, but it is unlikely, given these bottle fragments had curved profiles indicitave of cylindrical bottles rather than the square case bottles.
The Griffin, also an English East India Company (EIC) vessel, wrecked in the Philippines in 1761 after the ship struck an uncharted reef [62].The passengers and crew were able to escape and took some of the ship's cargo and personal items with them.The surviving cargo included several English bottles from the early eighteenth century and a fragmented wineglass stem.The report on the project listed neither case bottles nor stoneware jugs from this wreck [62].
HMS Swift, a British sloop of war, sank off the coast of Argentina in 1770 [65,66].On the site, more than 20 cylindrical wine bottles were found as well as smaller beer bottles.Additionally, more than 12 mold-blown case bottles were found on the wreck with the characteristic short neck and square cross section.Some of the bottles were inside a wooden case, and all were found in the stern area, which belonged to the ship's officers.Analysis was done on the liquids in the bottles and found a sweet wine substance in the cylindrical bottles but due to seawater contamination, the square bottles could only be confirmed as having alcohol of some sort inside.
The Sydney Cove wrecked in 1797 on a journey from Calcutta to Port Jackson, Australia (present-day Sydney) [69].The crew was able to escape and take their personal possessions, so very little evidence of shipboard-life remains.The vessel's cargo consisted mainly of Indian goods, despite the vessel being British and heading towards a British colony.The cargo included wineglass fragments and earthenware jars or bowls.The largest group of finds from the cargo, however, related to alcohol consumption and exports.Around 7000 gallons (31,500 L) of alcohol was noted to be in wooden casks in the hold.The ship captain wrote a maritime protest detailing the abandonment of the vessel and noted that 105 casks of rum, 2 casks of brandy, and 4 pipes of Madeira were salvaged.
Additionally, alcohol was brought onboard the vessel in bottles.Thirty-seven intact examples were found during the excavations, including 22 bottles that were still sealed.The ship had wine-style quart bottles (confirmed by liquid sampling) as well as beer-style quart bottles, but most importantly there were at least 12 cases of gin and brandy according to archaeological and archival material.Interestingly, even though this was a British ship, the shipping company operating the vessel was known to advertise 'Holland Gin'.Thus, the author believes, the 12-dozen case bottles recovered by archaeologists most likely held genever and reflected the international blend of European trade items among European ships operating in Indian Ocean waters.
The General Carleton sunk in 1785 in the Baltic [67,68].During excavation, 43 ceramic vessels and 169 pottery sherds were found.This included stoneware, in the form of Englishmade brown jars, and bottles and pitchers of German origin.Glass finds included complete round wine bottles and fragments of four to five case bottles.

Other European Wrecks
Fishermen found a mid-sixteenth-century shipwreck near the Seychelles and the hull characteristics and the armament indicated Portuguese origin, typical of the naus vessel type [43].Although the wreck date is perhaps too early for genever consumption and shipping, some artefacts were noted to be similar to those on Dutch VOC shipwrecks.A German-made Bartmann jug was found and compared with one found on the Vergulde Draek wreck.Some stoneware storage jars were like those found on the Dutch Batavia.No case bottles were found on this wreck, although though their production was rare during the sixteenth century.
The Dauphine was a French frigate and the wreck (dating to 1704) was found off the coast of Saint-Malo, France and studied, along with the Aimable Grenot.Archival sources on the ships and the wrecking confirmed their identities [54].The Dauphine contained Frechen Bartmann jugs and wine bottles.No case bottles were found, but there were pewter screw caps.The Aimable Grenot was another French privateering frigate and the archaeological finds included German stoneware and wineglass bottles.
The Sadana Island Ottoman-period wreck was excavated off the coast of Egypt and its finds date to around 1765 [64].The cargo consisted mainly of Chinese porcelain, with 4000 artefacts recovered in total (though many were looted already).Only earthenware ceramics are mentioned.Four dozen broken green glass case bottles were found around midship, and archaeologist Cheryl Ward notes that these were probably part of the cargo [70,71].The vessel has not been identified, but the researchers note the construction methods are not indicative of Portuguese, English, or Dutch craftmanship.
The Mardi Gras Wreck, in the Gulf of Mexico, dates to the 1820s and gives insight into the consumerism patterns of the United States during this time period [60].A number of ceramic and glass vessels were recovered, mostly from the cabin area of the vessel, indicating that they were for shipboard use and not cargo.There were 14 complete or near-complete bottles and 43 fragments, including 13 French wine bottles and 2 British beer bottles.There were no case bottles, and the small number of bottles suggests they were for personal crew consumption.For ceramic artefacts, there were 14 complete, 6 broken but identifiable, and 3 sherds found, mostly found together aft of the bulkhead.Of these, three were stoneware, produced in Germany: two were Rhenish dating to 1780-1830 and one was a small bottle for ink or oil.The nationality of the vessel has not been determined, but no characteristically Dutch artefacts have been recovered.
Other European shipwrecks are worth noting in this analysis because of their lack of either German stoneware or case bottles.The Prince of Conty was a French East Indiaman that sunk off the coast of Western France in 1746.Neither stoneware nor case bottles were listed in the excavations report.The Henry Addington was an EIC vessel that wrecked in 1798 off the Isle of Wight in England.None of the listed cargo included alcohol and there were no case bottles found in the excavations, which is very different to the VOC wrecks of the period.The Hindostan and the Albion were both British and wrecked in the Thames Estuary in 1765 and 1803, respectively.Of the ceramics discussed in the site reports by the Marine Archaeological Surveys charity, none are German stoneware.Glass bottles are also never mentioned [63,75].

Conclusions
Based on the researched sample of Dutch and non-Dutch ships from the sixteenth to early nineteenth centuries, wreck sites with both square case bottles and stoneware drinking vessels are likely to be Dutch ships.Table 1 showed that of the 14 Dutch vessels studied, only 2 (Avondster and Adelaar) did not have indications of both case bottles and stoneware bottles onboard.British, French, and Portuguese ships generally do not contain both types of material.However, this theory needs to be studied further, as only a sample of archaeological sites was used in this paper.Archaeologically, the study of genever could yield interesting results and a tentative method for shipwreck nationality determination.This does not necessarily mean that genever was in the bottles at the time of sinking of the ship, or that genever was not present on other European ships, but given the historical evidence, it is likely that this these two types of containers were on the Dutch vessels.Some of the shipwrecks (the Kennemerland and 't Vliedend Hart for example) have documentary evidence of korenbrandewijn and brandewijn on the vessel at the time of wrecking or a voyage before.VOC ration lists and written sources from the VOC, WIC, and Admiralties also indicate that genever (or genever's precursors) were present on ships and that would have been in kelderflessen.Though genever (and case bottles) became a global product during the Age of Sail, its place of manufacture and main area of usage was The Netherlands.
The stoneware component of genever storage is more difficult to quantify.It is not until the nineteenth century that stoneware bottles are used primarily for genever and not for mineral water.Perhaps, stoneware jugs, like Bartmann jugs, were used for alcohol before, but it is difficult to tell.Alcohols could be decanted into stoneware jugs, pitchers, and bottles for serving, but again, there is not a reliable way to tell what was in a vessel.In several wrecks, the stoneware items were found around the galley, and can then assumed to have been used for crew consumption (of oils, vinegars, maybe alcohols) unless an analysis of the content can be performed (which will depend on preservation conditions and research design) and that allows a to determine more precisely what such content actually was.Contemporary Dutch art does indicate the use of stoneware jugs and bottles for alcohol, and it can be assumed that continued at sea.
When faced with a shipwreck of unknown origin, archaeologists look at a number of factors to try and determine its nationality.Ship construction techniques, historical documentation, armament, and geographic factors are good indicators, but material culture can also provide signs.The artefacts from cargo areas, cabins, and crew areas can shed light not only on the day-to-day life of those onboard, but also to the consumption habits of the crew.Additionally, at sea, alcohol was consumed in great amounts.The Dutch vessels issued genever and genever was stored in distinct ways.Archaeologists should look to these distinct bottles as clues to a possible identification of a ship.
[40].Further examples found in Sijtwende, Netherlands, are stamped with 'Hulstkamp & Zn.& Molyn Rotterdam'[41] (p.78).While the jeneverkruiken look similar to mineral water bottles, they often had stamps indicating the distilleries and tended to be smaller.The company marked was a distillery first opened in 1775, though the bottles are from after 1823[41].

Figure 5 .
Figure 5. Fragment of a stoneware bottle with 'Weesp Gin' stamped on it.Found in Amsterdam dating to 1775-1850.(Image from Jerzy Gawronski's 'Below the Surface' artefact compilation for the city of Amsterdam and reprinted under Common Use Licensing).

Table 1 .
Sample of Age of Sail Shipwrecks.