East Germany issued in 1982 and 1987 one stamp for the 30/35th anniversary of the Society for Sport and Technology (GST). On the right of the 10 pf stamp is visible a cutter rowed by society members. On the 20pf is depict the training vessel WILHELM PIECK see: viewtopic.php?f=2&t=5962&p=5958&hilit=wilhelm+pieck#p5958
The GST was subordinate to the Ministry of National Defence of the former GDR, because they was responsible for the pre-military education of the youth. For example close combat fighting, shooting and flying and parachute jumping.
Of the depicted cutter I don’t have any information.
Much more is given on the GST: https://en.wikipedia.org/wiki/Gesellsch ... nd_Technik
East Germany 1982 20pf sg”?, scott? 1987 10p sgE2823 scott?
Source: Navicula.