Post of Serbia have issued a souvenir sheet commemorating, the `60 Years Since the First Manned Spaceflight`. The 3 stamps were issued with tabs and 3 first day covers, one for each of the stamps. they commemorate Yuri Gagarin, Gherman Titov and Valentina Tereshkova. They were issued on 29 June 2021.
(by Nicholas Steggall)
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