Rare issue.
Type with Eagle in shield and an ox's head in round rim.
Silesia, Duchy of Oels, Konrad VIII the Younger (1416-1447), Heller 1430-1440, Wohlau mint
Obverse: ox's head straight ahead, in round frame
M WM W
Reverse: piast eagle facing straight, head to the left, in shield
M C W
Diameter 12 mm, weight 0.27 g
