Photos with 4 autographs of cosmonauts Yuri Gagarin, Andriyan Nikolaev, Pavel Popovich, German Titov

Yuri Gagarin was a Soviet cosmonaut, the first man on Earth to fly into space, and a hero of the USSR.

Andriyan Nikolaev is the 3rd Soviet cosmonaut. Twice Hero of the Soviet Union. Major General of Aviation. The first cosmonaut who participated in a military experiment in space.

Pavel Popovich is a Soviet cosmonaut. Pilot-cosmonaut of the USSR. Twice Hero of the Soviet Union. Pilot of the Vostok-4 spacecraft. During the first group flight, the commander of the Vostok-4 spacecraft took a number of crucial steps in the space program.

German Titov is a Soviet cosmonaut, the first person to make a long—term space flight, the second Soviet cosmonaut, and the second person in the world to make an orbital space flight.

On April 12, 1961, Yuri Gagarin made his first space flight. His understudy was German Titov. On August 6, 1961, German Titov made his first daily flight (25h 18min). On August 11 and 12, 1962, a group flight of spacecraft was made by Andriyan Nikolaev and Pavel Popovich. Andriyan Nikolaev set a record for flight duration – 94h 25min.