Potin Unit Thurrock Degraded Head Variety

Potin coinage in Britain was not locally invented — it arrived as a technology transfer from Gaulish tribes, most likely via the Thames estuary trading networks that connected southeastern Britain to the continent in the late Iron Age. The Thurrock type is among the earliest British potins, and the "degraded head" designation refers specifically to progressive die copying: each generation of dies was cut from a casting of the previous coin rather than from a master, compressing and distorting the design incrementally. Van Arsdell's numbering range of 1426–38 reflects that degradation sequence rather than distinct subtypes.