Space conquest

Fischer 2392 | Michel 2539 | Year of issue 1977 | People's Republic of Poland

20 years of space conquest.

2392
Vostok, Mercury and Earth

Decorative label:
Sputnik 1 (4 October 1957)

Decorative label:
Explorer 1 (31 January 1958)

Minisheet 2392

XX lat podboju kosmosu = 20 years of space conquest.