Heller 1412-1450 Konrad V Kantner / Konrad VII the White Duchy of Olesnica Olesnica

an unusual and unrecorded variety with the letters "O" and "L" swapped on the obverse,
obverse: eagle of St. Jana walking to the left with a nimbus around his head,
a ribbon in his talons, the letter M O L around it and a continuous border,
reverse: on an ogival shield an eagle with seven feathers in the wing and a sash,
trefoils on the shoulders, a cross on the chest,