A combination of stamps not described in Igor Shatalin's catalog - with the obverse with the IOAN CASI titular, and the reverse with rosettes and ARGENT (instead of the popular ARGEN).
The issue is dated to the first half of 1657, before the surrender of the Swedes and the siege of Krakow.
Without initials on the reverse, with two rosettes on the sides of the Wieniawa coat of arms (attributed by Jaroslaw Dutkowski to Sebastian Zacherla, tenant of the mint).
Mint disc tear. A coin with a very nice, charming appearance. Well minted, well preserved surface and nice relief. Light patina. Very attractive.