Denier Bracteate - Mieszko III the Old Gniezno or Kalisz mint

Mieszko III ruled intermittently — expelled from Kraków twice, constantly maneuvering against his Piast rivals — and his bracteates reflect a fractured political reality rather than stable regal production. These thin, single-sided strikes were the dominant Polish coinage form in the twelfth century, their fragility a practical consequence of the hammering technique applied to blanks too thin to bear a full double-sided die. Attribution to Gniezno or Kalisz remains unresolved; both were major centers of his actual power base in Greater Poland during his longer periods of control.