1981 Sc 5098 30th Radioamateur Scott 4917

1981. 30th Radioamateur.
Catalogs: Scott 4917, Standard Collection 5098, Michel 5048, Yt 4785.
Issued on: March 12, 1981.
Perforation: comb 11½.
Printing: Offset lithography.
Colors: Multicolor.
Face value: 4 Russian kopek.
Quantity: 4,100,000.