Dirt on the surface. Good freshness of it.
Denarius of Boleslaus IV with the emperor on the throne, the issue of which is linked to the tribute paid to Frederick Barbarossa in Krzyzkow near Poznan in 1157.
A variant with the emperor holding a lily, seated to the left of a crescent moon with a ball.
Variant with name spelling: BOLEZLAVS (part of the letters rotated and twisted).
Rare type.
Silver, diameter 15.4 mm, weight 0.42 g.
