Denier Bracteate - Mieszko III the Old Gniezno or Kalisz mint

Mieszko III ruled Greater Poland twice — expelled by his own nobles in 1177, he spent decades in and out of power before reclaiming the duchy and eventually dying in office in 1202. The bracteate format, a single-sided coin struck on a thin flan, was adopted across the Polish duchies during the fragmentation period following Bolesław III's 1138 testament, which divided the kingdom among his sons and triggered over a century of dynastic conflict. Gniezno and Kalisz both operated as ducal mints under Mieszko, and attribution of individual dies to one city or the other remains unresolved in the literature.

Kop#111 is among the scarcer bracteate attributions in the Kopicki series for this reign.