Six Kniga Covers Signed by Soviet Cosmonauts Gagarin Titov Tereshkova Nikolayev

Description

A lifetime authenticity is guaranteed for these autographs.
Six KNIGA covers, all with cachets commemorating Russian space achievements, issued and canceled to mark one of the first six Russian manned space missions. Each signed in ink by one of the first six cosmonauts, including: Yuri Gagarin, German Titov, Andriyan Nikolayev, Pavel Popovich, Valery Bykovsky, and Valentina Tereshkova.
In fine condition.
Accompanied by a letter of authenticity from KNIGA, the Russian philatelic department.