Attractive pair of colorful 4.25 x 2.75 USSR postage stamps honoring the 15th anniversary of the world's first space walk, displayed on their respective 10.5 x 13.25 souvenir sheets, and signed on the "Steps in Space" sheet in pencil by Alexei Leonov, who was commissioned to design these very stamps. The sheets are presented in their original Fleetwood display folder. In fine condition.
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