1974 Sc 4279-4280. World Exhibitions Expo 74. Scott 4188-4189

1974. World Exhibitions Expo 74
Catalogs: Scott 4188-4189, Standard Collection 4279-4280, Michel 4229-4230, Yt 4030-4031.
Issued on: 1974-04-24.
Perforation: comb 11½
Printing: Photogravure
Size: 29 x 41 mm
Colors: Multicolor
Face value: 4 Russian kopek; 6 Russian kopek
Print run: 4,800,000; 4,200,000