Long currency Baltic tribes; Round-edge type

These heavy cast silver pieces functioned as weighed currency across the eastern Baltic trading networks, where coins were valued by metal content rather than face denomination. Scandinavian, Byzantine, and Islamic dirhams all circulated alongside them, and the "long currency" form — essentially a standardized ingot — emerged partly as a response to the chaos of mixed coinage arriving via the Varangian trade routes.

The rounded edge distinguishes this type from the faceted or ribbed variants produced by neighboring groups, a difference that likely reflects regional workshop tradition rather than any issuing authority's decree. No centralized mint existed; production was local and demand-driven.