Vasa dynasty, John II Casimir (1648-1668), XXX groszy - tymf (zloty) 1663 AT, Bydgoszcz mint
colon before METALLO - POTIORQ3:METALLOEST, end of inscription ......SALV.
letters AT - Andrew Tymf, quite nicely minted and preserved
Silver, weight 6.42 grams, diameter 31.2 mm