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 political exile before reclaiming his position, a dynastic instability that makes attributing his bracteate issues to specific mints genuinely difficult. Gniezno and Kalisz both served as administrative centers during his reign, and the scholarly debate over which produced Kop#84 remains unresolved.

At 0.13 g, these pieces were struck on foil-thin flans, making survival in any condition remarkable. Polish bracteates of this period were never intended for longevity — they were subject to periodic exchange mandates requiring holders to surrender old coinage for newly issued pieces at a loss, a fiscal mechanism that effectively taxed the population through currency replacement.