Rare heller from the Crossen mint, from the time of Heinrich IX Elder (1412-1467), Duke of Glogau-Sagan.
Issue after 1431-1438.
Silesia, Duchy of Glogau-Sagan, Heinrich IX the Elder (1412-1467), Heller, Crossen mint
Obverse: chessboard in grids, three convex squares connected by diagonals
Reverse: Silesian eagle with a concave band over the wings and breast, and a cross on the breast, head to the left
Diameter 11 mm, weight 0.27 g