Bidspirit auction | Russian Astronauts Apollo–Soyuz mission signed

Russian Astronauts Apollo–Soyuz mission signed first day covers. GFA Authenticated - First day covers to commemorate the Apollo–Soyuz mission, carried out jointly by the United States and the Soviet Union in July 1975. Covers autographed by Russian Astronauts Alexei Leonov and Valery Kubasov. GFA Authenticated