Sceat

Frisian sceats circulated as the workhorse currency of early North Sea trade, passing through the emporia at Dorestad and Domburg at a time when those ports were among the busiest commercial nodes in northwestern Europe. Their production was decentralized — no single mint authority controlled output — which accounts for the wide die variation and inconsistent fabric seen across the series.

The silver content degraded noticeably across the eighth century as bullion supplies tightened, a pattern documented in metal analysis studies that track the debasement alongside Carolingian encroachment on Frisian commercial autonomy after roughly 734.