A nice, fully legible cross denarius.
W. Nakielski attributes this issue to the Wrocław mint, while other authors place it in the Greater Poland mint, possibly in Gniezno.
Obverse: a simple cross in the border, with mint marks between the arms;
Reverse: within the rim, a crosier with a crozier tip pointing to the right, surrounded by spheres;
Silver, diameter 12 mm, weight 0.69 g.
