Poland, Jan Kazimierz 1648-1668. Szostak (6 Groschen) 1667 TLB, Bydgoszcz (Bromberg) mint, Slepowron coat of arms in the shield, Ciura 667B.7.1.2.1, variety with bust of type VI, with moulded shields, dots on sides of crown, Silver 25 mm, weight 3,21 g., Condition VF, patina