Commemorative issue: 70th anniversary of Birth of Otto Grotewohl, President of the GDR Council of Ministers from 1949 to 1964.
Issuer    German Democratic Republic (Germany) 
Period    Democratic Republic (1949-1990)
Type    Circulating commemorative coins
Year    1973
Value    20 Mark (20 DDM)
Currency    Mark (1948-1990)
Composition    Nickel brass
Weight    15 g
Diameter    33 mm
Thickness    2.4 mm
Shape    Round
Technique    Milled
Orientation    Medal alignment ↑↑
Demonetized    30 June 1990
 
Obverse:  State emblem, denomination
Script: Latin
Lettering:
DEUTSCHE DEMOKRATISCHE REPUBLIK
20 MARK
1973A
Translation:
GERMAN DEMOCRATIC REPUBLIC
20 MARK
1973A
Reverse:
Portrait of Otto Grotewohl, the first President of the GDR Council of Ministers.
Script: Latin
Lettering:
OTTO GROTEWOHL
1894
1964
Edge
Smooth with inscription
Script: Latin
Lettering: 20 MARK * 20 MARK * 20 MARK * 20 MARK *