Currency Bar Plough

Iron currency bars circulated across Iron Age Britain as a medium of exchange well before Roman contact, and Julius Caesar noted their use explicitly in his account of Britain circa 54 BC — one of the few contemporary written references to prehistoric British monetary practice. The plough-sword type, produced predominantly in the territories of the Dobunni and neighboring groups of the central and western regions, represents a specific regional tradition distinct from the sword-shaped bars found further east.

Iron was itself a commodity of productive value, meaning these objects straddled the line between tool-blank and currency — a distinction the Romans found economically primitive but which served local exchange networks effectively for generations.