Vasa dynasty, Jan II Kazimierz (1648-1668), ort (18 grosz) 1659 AT, mint Poznań
Delicate patina, numerals 1-8 at the top and the letters A-T on the sides of the shield with the date, and ornaments on the sides of the shield, the last vintage of the Poznañ orts of this king with his early portrait. Below the bust of the king a coat of arms in a rectangular shield.
Silver, weight 6.02 grams, diameter 30.3 mm