Poland, John Casimir, the Crown, Tymf (Zloty) 1664, Bydgoszcz mint.
On the obverse incorrectly shows POIORQ3 instead of POTIORQ3.
Silver, 6.30 g, 31.2 mm. Szłapinski & Biełopolski don't know. Coin described by S. Wilk (Tymf "Poiorq3" z 1664, Biuletyn Numizmatyczny 11-12/1985, p. 232).
Grade: Near XF, well preserved and rare coin.