Issue commemorating the conquests of Friedrich II in 1757.
Medal by Nils Georgi.
Obverse: half-length portrait of a ruler in ceremonial armour, right, signature G on the cut arm
FREDERICUS BORUSSORUM REX
Reverse: Heracles defeating Geryon, in the background a panorama of the city, GALL AUSTR RUSS ET SUEC / UNDIQUE PROFLIGATIS / MDCCLVII in exerque
NEC PLURIBUS IMPAR
Diameter 42 mm, weight 21.91 g