German at Portsmouthさんのイラストまとめ

8 May 1967: stamps issued in the GDR depicting 'invincible Vietnam'

28 April 1970: stamps issued in East Germany depicting protected plants

27 April 1976: stamp issued in East Germany showing an aeronautical station in Neu Golm that formed part of ‘Intersputnik’ - an international satellite communications services organization

25 April 1968: stamps issued in the GDR to mark the 7th FDGB Congress held in East Berlin

18 April 1961: stamps are issued in East Germany to commemorate Yuri Gagarin's journey into outer space

15 April 1969: stamps issued in the GDR depicting protected plants

24 February 1966: stamps issued in the GDR to mark the Leipziger Frühjahrsmesse. Here's a state-of-the-art punch-card computer.

'Winterferien - Winterfreuden': 1945 Swiss winter tourism poster designed by Edmund Welf

22 February 1972: East German stamps are issued depicting minerals from the Bergakademie Freiberg's collection

1945 Swiss poster promoting winter tourism in the Berner Oberland region. Designed by Franco Barberis.