Denarius type linked to the tribute paid to Frederick Barbarossa in the year 1157, in Krzyzkow near Poznan.
Extremely rare variety with an inscription in FOUR (instead of three) lines: BO / LEZ / LAV / SM.
An exquisite mint piece, with beautiful strong luster, sharp relief.
For the best collections. Definitely recommended.
obverse: emperor on a throne, wearing a square crown, with a lily and an apple in his hands, crescents at the emperor's sides
reverse: inscription in four lines BO / LEZ / LAV / S W and vertical dashes
Diameter 17 mm, weight 0.39 g.