At our Auction 17 – Szóstak coins of John II Casimir 1657
And here is the hero from the cover of the reference catalog of szóstak coins by Łukasz Ciura. A nice and well-minted piece of the Krakow six-groszy coin. Szóstak with an A-style obverse and a B-style reverse (including the large Wieniawa coat of arms). Variant with the IO CASIMI inscription on the obverse and MON ARGEN on the reverse.
https://onebid.pl/…/monety-jan-ii-kazimierz…/2122963