Very nice reverse, with natural luster. Minting imperfections typical of this mint.
An undescribed variety in the specialized catalog of Jan Kazimierz's sixpences - with an error in the abbreviation of the word grosz (GPOinstead of GRO), but the correct abbreviation of the word silver (ARGEN).
Bust of the King type VI, shields profiled with bows on the upper edge.
