Poland, John Casimir, Crown, szóstak (sextuple groschen) 1661, Leopol (Lviv) mint.
POL & SVE ends legend on the Obv., arched coat of arms shields, the Ślepowron coat of arms on the obverse without a border, date only on the reverse, denomination under the crown on the reverse, letters GB - A at the bottom (initials of the lessee of the Lviv mint, Giovanni Battista Amoretti).
Silver, 3.15 g, 24.5 mm. Kop. 1642 (R), Kurp. (1649–1696) 176 (R).
Grade: Near XF, very nicely preserved for this type of coin.