Gundestrup cauldron
The Gundestrup cauldron is a richly decorated silver vessel, thought to date from between 200 BC and 300 AD, or more narrowly between 150 BC and 1 BC. This places it within the late La Tène period or early Roman Iron Age. The cauldron is the largest known example of European Iron Age silver work. It was found dismantled, with the other pieces stacked inside the base, in 1891, in a peat bog near the hamlet of Gundestrup in the Aars parish of Himmerland, Denmark. It is now usually on display in the National Museum of Denmark in Copenhagen, with replicas at other museums; it was in the UK on a travelling exhibition called The Celts during 2015–2016.
The cauldron is not complete, and now consists of a rounded cup-shaped bottom making up the lower part of the cauldron, usually called the base plate, above which are five interior plates and seven exterior ones; a missing eighth exterior plate would be needed to encircle the cauldron, and only two sections of a rounded rim at the top of the cauldron survive. The base plate is mostly smooth and undecorated inside and out, apart from a decorated round medallion in the centre of the interior. All the other plates are heavily decorated with repoussé work, hammered from beneath to push out the silver. Other techniques were used to add detail, and there is extensive gilding and some use of inlaid pieces of glass for the eyes of figures. Other pieces of fittings were found. Altogether it weighs just under.
While the vessel was found in Denmark, it was probably not made there or nearby; it includes elements of Gaulish and Thracian origin in the workmanship, metallurgy, and imagery. The techniques and elements of the style of the panels relate closely to other Thracian silver, while much of the depiction, in particular of the human figures, relates to the Celts, though attempts to relate the scenes closely to Celtic mythology remain controversial. Other aspects of the iconography derive from the Near East.
Hospitality on a large scale was probably an obligation for Celtic elites, and although cauldrons were therefore an important item of prestige metalwork, they are usually much plainer and smaller than this. This is an exceptionally large and elaborate object with no close parallel, except a large fragment from a bronze cauldron also found in Denmark, at Rynkeby; however the exceptional wetland deposits in Scandinavia have produced a number of objects of types that were probably once common but where other examples have not survived. It has been much discussed by scholars, and represents a fascinatingly complex demonstration of the many cross-currents in European art, as well as an unusual degree of narrative for Celtic art, though we are unlikely ever to fully understand its original meanings.
Discovery
The Gundestrup cauldron was discovered by peat cutters in a small peat bog called "Rævemose" on 28 May 1891. The Danish government paid a large reward to the finders, who subsequently quarreled bitterly amongst themselves over its division. Palaeobotanical investigations of the peat bog at the time of the discovery showed that the land had been dry when the cauldron was deposited, and the peat gradually grew over it. The manner of stacking suggested an attempt to make the cauldron inconspicuous and well-hidden. Another investigation of Rævemose was undertaken in 2002, concluding that the peat bog may have existed when the cauldron was buried.The cauldron was found in a dismantled state with five long rectangular plates, seven short plates, one round plate, and two fragments of tubing stacked inside the curved base.
In addition, there is a piece of iron from a ring originally placed inside the silver tubes along the rim of the cauldron. It is assumed that an eighth short plate is missing because the circumference of the seven outer plates is smaller than the circumference of the five inner plates.
A set of careful full-size replicas have been made. One is in the National Museum of Ireland,
and several are in France, including the Musée gallo-romain de Fourvière at Lyon and the Musée d'archéologie nationale at Saint-Germain-en-Laye.
Reconstruction
Since the cauldron was found in pieces, it had to be reconstructed. The traditional order of the plates was determined by Sophus Müller, the first of many to analyze the cauldron. His logic uses the positions of the trace solder located at the rim of the bowl. In two cases, a puncture mark penetrating the inner and outer plates also helps to establish the order. In its final form, the plates are arranged in an alternation of female-male depictions, assuming the missing eighth plate is of a female.Not all analysts agree with Müller's ordering, however. Timothy Taylor has pointed out that aside from the two cases of puncturing, the order cannot be determined from the solder alignments. His argument is that the plates are not directly adjacent to each other, but are separated by a 2 cm gap; thus, the plates in this order cannot be read with certainty as the true narrative, supposing one exists. However, Larsen indicates, not only did his study vindicate the order for the inner plates established, by Muller, Klindt-Jensen, and Olmsted, but the order of the outer plates is also established by the rivet holes, the solder alignments, and the scrape marks.
Metallurgy
The Gundestrup cauldron is composed almost entirely of silver, but there is also a substantial amount of gold for the gilding, tin for the solder and glass for the figures' eyes. According to experimental evidence, the materials for the vessel were not added at the same time, so the cauldron can be considered as the work of artisans over a span of several hundred years. The quality of the repairs to the cauldron, of which there are many, is inferior to the original craftsmanship.Silver was not a common material in Celtic art, and certainly not on this scale. Except sometimes for small pieces of jewellery, gold or bronze were more usual for prestige metalwork. At the time that the Gundestrup cauldron was created, silver was obtained through cupellation of lead / silver ores.
From comparisons of the concentration of lead isotopes with the silver work by other cultures, it seems that the silver came from multiple ore deposits, mostly from Celtic northern France and western Germany in the pre-Roman period. Lead isotope studies also indicate that the silver for manufacturing the plates was prepared by repeatedly melting ingots and/or scrap silver. Three to six distinct batches of recycled silver may have been used in making the vessel. Specifically, the circular "base plate" may have originated as a phalera, and it is commonly thought to have been positioned in the bottom of the bowl as a late addition, soldered in to repair a hole. By an alternative theory, this phalera was not initially part of the bowl, but instead formed part of the decorations of a wooden cover.
The gold can be sorted into two groups based on purity and separated by the concentration of silver and copper. The less pure gilding, which is thicker, can be considered a later repair, as the thinner, purer inlay adheres better to the silver. The adherence of the overall gold is quite poor. The lack of mercury from the gold analysis suggests that a fire-gilding technique was not used on the Gundestrup cauldron. The gilding appears to have instead been made by mechanical means, which explains the function of closely spaced punch marks on the gilded areas.
An examination of lead isotopes similar to the one used on the silver was employed for the tin. All of the samples of tin soldering are consistent in lead-isotope composition with ingots from Cornwall in western Britain. The tin used for soldering the plates and bowl together, as well as the glass eyes, is very uniform in its high purity.
Finally, the glass inlays of the Gundestrup cauldron have been determined through the use of X-ray fluorescence radiation to be of a soda-lime type composition. The glass contained elements that can be attributed to calcareous sand and mineral soda, typical of the east coast of the Mediterranean region. The analyses also narrowed down the production time of the glass to between the second century BC and first century AD.
Flow of raw material
The workflow of the manufacturing process consisted of a few steps that required a great amount of skill. Batches of silver were melted in crucibles with the addition of copper for a subtler alloy. The melted silver was cast into flat ingots and hammered into intermediate plates.For the relief work, the sheet-silver was annealed to allow shapes to be beaten into high repoussé; these rough shapes were then filled with pitch from the back to make them firm enough for further detailing with punches and tracers. The pitch was melted out, areas of pattern were gilded, and the eyes of the larger figures were inlaid with glass. The plates were probably worked in a flat form and later bent into curves to solder them together.
It is generally agreed that the Gundestrup cauldron was the work of multiple silversmiths. Using scanning electron microscopy, Benner Larson has identified 15 different punches used on the plates, falling into three distinct tool sets. No individual plate has marks from more than one of these groups, and this fits with previous attempts at stylistic attribution, which identify at least three different silversmiths. Multiple artisans would also explain the highly variable purity and thickness of the silver.
Origins
The silverworking techniques used in the cauldron are unknown from the Celtic world, but are consistent with the renowned Thracian sheet-silver tradition. The scenes depicted are not distinctively Thracian, but certain elements of composition, decorative motifs, and illustrated items identify it as Thracian work.Taylor and Bergquist have postulated that the Celtic tribe known as the Scordisci commissioned the cauldron from native Thracian silversmiths. According to classical historians, the Cimbri, a Teutonic tribe, went south from the lower Elbe region and attacked the Scordisci in 118 BC. After withstanding several defeats at the hands of the Romans, the Cimbri retreated north, possibly taking with them this cauldron to settle in Himmerland, where the vessel was found.
According to the art style of the Gundestrup cauldron is that utilized in Armorican coinage dating to as exemplified in the billon coins of the Coriosolites. This art style is unique to northwest Gaul and is largely confined to the region between the Seine and the Loire, a region in which, according to Caesar, the wealthy sea-faring Veneti played a dominant and hegemonic role. Agreeing with this area of production, determined by the art style, is the fact that the
Not only does the Gundestrup cauldron enlighten us about this coin-driven art style, where the larger-metalwork smiths were also the mint-masters producing the coins, but the cauldron also portrays cultural items, such as swords, armor, and shields, found and produced in this same cultural area, confirming the agreement between art style and metal analysis. If as and suggest, the Veneti also produced the silver phalerae, found on the Isle of Sark, as well as the Helden phalera, then there are a number of silver items of the type exemplified by the Gundestrup cauldron originating in northwest France, dating to just before the Roman conquest.
Nielsen believes that the question of origin is the wrong one to ask and can produce misleading results. Because of the widespread migration of numerous ethnic groups like the Celts and Teutonic peoples and events like Roman expansion and subsequent Romanization, it is highly unlikely that only one ethnic group was responsible for the development of the Gundestrup cauldron. Instead, the make and art of the cauldron can be thought of as the product of a fusion of cultures, each inspiring and expanding upon one another. In the end, based on accelerator datings from beeswax found on the back of the plates, Nielsen concludes that the vessel was created within the Roman Iron Age. However, an addendum to Nielson's article indicates that results from the Leibniz Lab on the same beeswax dated some 400 years earlier than reported in his article.
According to Ronald Hutton, because the cauldron's source metals have been traced to the Black Sea region, and depicts elephants, the cauldron should no longer be considered Celtic.