Four items: 3.5 x 4.5 matte-finish photo signed in black ink by Andrian Nikolayev; 3.5 x 4.5 matte-finish photo signed in black ink by Pavel Popovich; 3.25 x 4.75 glossy photo signed in black ink by Valery Bykovsky; and a commemorative cover produced by the Cosmos Club in Brno, Czechoslovakia, postmarked April 27, 1964, signed in blue ink by Bykovsky. In overall fine condition. RRAuction COA.
