Currency Bar Sword

Currency bars of this type circulated across Iron Age Britain as a pre-coinage medium of exchange, their sword-like form reflecting the dual value iron held as both raw material and finished weapon stock. Julius Caesar noted in his Gallic Wars that the Britons used iron bars of fixed weight as currency — one of the few contemporary written references to this practice.

The weight correspondence to usable iron stock was deliberate: a bar of this mass could be worked directly into a functional blade, giving it intrinsic utility beyond symbolic exchange value.