I received this letter from Mik, with stamps and minisheets very beautiful.
But I would like to highlight the two stamps on the Apollo-Soyuz space mission conducted in 1975 by the U.S. and USSR with 2 astronauts Tom Stafford, Vance Brand and Donald Slayton and 2 cosmonauts Alexei Leonov and Valeri Kubasov. The spacecraft took off on July 15, 1975 and is coupled in space on July 17, 1975. Apollo 18 returned on July 24, 1975 Soyuz and returned July 21.
This was the last Apollo mission but it was very important. The mission conducted scientific experiments and crews visited the two linked spacecraft, exchanging gifts and seeds.
Thanks Mik for all these stamps and many histories.