Gundestrup Cauldron - Flow of Raw Material

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.