3638431 Valentina Tereshkova-Nikolayeva and Yuri Gagarin were heartily welcomed when they visited the frontier guards in Berlin on 20 October 1963 (b/w photo) by German Photographer (20th Century); Private Collection; (add.info.: Valentina Tereshkova-Nikolayeva and Yuri Gagarin were heartily welcomed when they visited the frontier guards in Berlin on 20 October 1963. The Soviet cosmonauts thanked the frontier guards of the National People\'s Armed Forces for the service they perform in order to safeguard the socialist achievements. East German propaganda photo.); Look and Learn / Elgar Collection; German, out of copyright.