Денарий, Польша, Bolesław II the Bold (1058-1080)

POLAND / Bolesław II the Bold 1058-1080. duke's denarius from 1070-1076, Obv: Head left in a border, BOLEZLAVS, Rev: Prince on horseback left, behind him a cross, silver 0.64 g, P. 33, Such. IX/1, rare