ИнтерКосмос was a Soviet progam that included manned missions to space. The participants countries were Soviet allieds from the Warsow Pact and countries like France and India. Between 1978 and 1988 there were fourteen internacional crews.
On May 26, 1980 Bertalan Farkas from Hungary went to space in the Soyuz 36 mission. These stamps were dedicated to this mission.