German at Portsmouthさんのイラストまとめ

3 July 1979: stamps issued in East Germany to celebrate the 7th Kinder- und Jugendspartakiade

24 June 1980: stamps issued in East Germany depicting endangered animals

23 June 1970: stamps issued in East Germany to mark 25 years of the Volkspolizei

5 June 1990: stamps issued in East Germany depicting the city of Halle

27 May 1986: stamps issued in East Germany to celebrate 125 years of Dresden Zoo

This is either:
1) a 1920 Thuringian advert for Bockbier, designed by Georg Fanner, or
2) a group of satanic locals worshipping their half-goat, half-beer glass overlord

19 May 1987: stamps issued in East Germany depicting freshwater fish

18 May 1982: stamps issued in East Germany depicting protected birds of prey

15 May 1990: the GDR issues stamps to commemorate 125 years of the International Telecommunication Union (ITU)

9 May 1989: stamp issued in the GDR to mark the Whitsun meeting of the Freie Deutsche Jugend in East Berlin