1990 Sc 6122-6124 150th Anniversary of First Stamp Scott 5874-5876

1990. 150th Anniversary of First Stamp.
Catalogs: Scott 5874-5876, Standard Collection 6122-6124, Michel 6066, 6067I, 6068II, Yt 5728, 5730-5731.
Issued on: February 15, 1990.
Perforation: comb 11½.
Printing: Photogravure.
Size: 40 x 28 mm.
Colors: Multicolor.
Face value: 10 Russian kopek; 20 Russian kopek; 35 Russian kopek.
Quantity: 2,300,000; 3,900,000; 2,300,000.