Space: 50th Anniv. 1st man in space - Gagarin - Prague 2011

Russia - Czech Republic
50th Anniversary Vostok 1 1st man in space - Yuri Gagarin
Pictorial postmarker
Prague 12 April 2011
Official commemorative sheet - this pictorial postmarker was exclusively used on this commemorative sheet - very small print run
NB: Czechoslovakia was the first country Gagarin visited after his flight