A very rare imitation of the Saxon denarius of Otto and Adelaide.
The issue attributed to the minting of Mieclaw - Duke of Mazovia in 1037-1047. Described in the Nummi Docent publication in the article by Mateusz Bogucki.
Known only from two treasures: from Stryjewo Wielkie and Zhukov.
Ex. WCN 71/152
Silver, diameter 20 mm, weight 2.14 g.