Poland, John Casimir, the Crown, szóstak (sextuple groschen) 1658, Cracow mint.
Variety with the letters TL-B (Titus Livius Burattini) under the coat of arms and the date in the legend on the reverse.
Silver, 3.43 g, 26.4 mm. H-Cz. 2126 (R4), Kop. 1615 (R5), Kurp. 153 (R5), Tyszkiewicz 15 mk.
Grade: Good VF / Near XF, very rare.