1979 Sc 4892 USSR Exhibition in London Scott 4749

1979. USSR Exhibition in London.
Catalogs: Scott 4749, Standard Collection 4892, Michel 4842, Yt 4592.
Issued on: April 18, 1979.
Perforation: comb 11½.
Printing: Photogravure.
Size: 28 x 40 mm.
Colors: Multicolor.
Face value: 15 Russian kopek.
Quantity: 4,250,000.