Saxon, Frederick Krystian Wettyn (1722-1763), son of August III Sas, 1/12 thaler 1763 IFoF, Leipzig mint.
Coin minted in Leipzig by the Polish prince Frederick Krystian, who died on December 17, 1763 at the age of 41, the same year as his father, King August III Sas of Poland.
Silver, weight 3.15 grams, diameter 22.3 mm