Variety not listed in Kopicki catalogue with six feathers in the helmet and the inscription BOLKO on the reverse.
Duchy of Schweidnitz-Jauer, Bernard II of Schweidnitz or Heinrich I of Jauer or Bolko II and Heinrich II (1301–1326), 1/2 Groschen, Löwenberg in Schlesien mint
Obverse: knight's helmet facing left with plume of 6 feathers
GALEA DVCVM SLESIE
Reverse: schlesien eagle facing forward with its head to the left in the shield
IVVENVM BOLKO
Diameter 18 mm, weight 1.94 g
