Very rare Silesian kwartnik of Duchy of Glogau, struck in time of Henry III or his sons.
Variety with a legend on the key side, classified in the Kopicki catalogue with the rarity grade R*.
Obverse: two keys
Reverse: six-pointed star with a hollow center, in which a point, between the arms points, in the rim quatrefoils
Diameter 18 mm, weight 1.35 g
