1988 Sc 5917 International Week of Letter Scott 5701

1988. International Week of Letter.
Catalogs: Scott 5701, Standard Collection 5917, Michel 5865, Yt 5546.
Issued on: August 25, 1988.
Perforation: comb 11½.
Printing: Photogravure.
Size: 40 x 28 mm.
Colors: Dark blue green.
Face value: 5 Russian kopek.
Quantity: 3,400,000.