"Apollo" and "Vostok" Spacecrafts and "Sputnik-1"

Joint issue - Russia and USA.
USA Mi:US 2235-2238.
Issued in sheets of 8 x Se-tenant blocks of 4 stamps.

Country:	Russia
Type:	Postage stamps
Series:	International Space Year
Nominal:	25 ₽
Year:	1992
Material:	coated
Size:	31 x 50 mm
Perforation:	comb 11½ x 11¾
Mintage:	1,100,000