The spacecraft "Soyuz-19" and "Apollo" at the time of docking on the background of the sky and of the Earth. Brand 4475 and 4476 issued as a vertical pair.
Postage stamps the same series: Experimental joint flight of the Soviet spaceship "Soyuz-19" (15.07.1975 - 21.07.1975) and the American "Apollo" (15.07.1975 - 25.07.1975)
The experimental flight of the ships Soyuz and Apollo