John II Casimir, 18 groschen 1659, Posen

Piece very nicely minted, with beautiful patina and local mint luster.
Minor scratches on the obverse.

Ort type with the Ślepowron (the coat of arms of the Crown Treasurer Jan Kazimierz Krasiński) separating the reverse legend.
Minted in the last months of 1659, when Jan Kazimierz Krasinski became the new treasurer of the Poznan mint.

Extreme rarity confirmed in Edmund Kopicki's catalog with the highest grade, except for rarities - R8.
The author of the catalog refers to only two pieces known to him.
Coin unlisted in the catalogs of Kaminski-Kurpiewski and Jozef Tyszkiewicz.

For the best collections!