Rare rechenpfennig from 1622, of Jan Chrystian (1591–1639), Duke of Brrieg from the Silesian Piast dynasty.
John Christian ruled the Duchies of Legnica and Brzeg, and his reign coincided with the turbulent years of the Thirty Years' War. In 1622, his mints issued coins in Brzeg, Oława, and Kluczbork, among others.
A counter with a distinctive, double-sided heraldic composition. One side features a crowned monogram in the center, with the date 1622 below, and a legend surrounding the entire design. The other side features a similar crowned monogram, also with the date 1622 and a legend in the surround.
Diameter 25 mm, weight 3.02 g
