Silver 1/2 Unit - Belgae Danebury Cogwheel Leaves

The Atrebates occupied a territory spanning modern Hampshire and Berkshire, and their coinage emerged partly in response to Julius Caesar's two British expeditions of 55 and 54 BC, which disrupted existing tribute networks and accelerated the adoption of coin-using practices among southern British tribes. The "Danebury Cogwheel" type takes its name from the Iron Age hillfort in Hampshire where diagnostic examples have been recovered — find-spot association rather than mint location, since no Celtic British mint infrastructure in the Roman sense existed.

At half a gram, these fractions were likely used in transactions too small for the standard unit, though their precise role in the Atrebatan exchange system remains debated.