Poland, John Casimir, the Crown, shilling 1650, Wschowa mint.
On the obverse there is a monogram, below it is the shield of the Vasa family, on the reverse is the date and the head of an ox.
Copper, 2.47 g, 22.9 mm. Kop. 1539 (R3), Tyszkiewicz 3 mk.
Grade: Good VF, beautiful dark patina, rare, struck with the same dies as lot 593 from the Marciniak auction, October 7, 2020.