Medal commemorating the referendum from March 20 1921 in Upper Silesia, concerning the incorporation of Upper Silesia into Poland.
Obverse: worker with a hammer, in the background a factory with chimneys
Reverse: inscription in seven lines, surrounded by a thorny bush
ZUM ANDENKEN / AN DEN ABSTIMMUNGS- / KAMPF / UM / OBERSCHLESIEN / 1921
Diameter 26 mm, weight 2.16 g