1961 SC 2565. 15 anniversary of the Bulgarian National Republic. Scott 2556
$0.60
1961. To the 15 anniversary of the Bulgarian National Republic.
Catalog numbers: Scott 2556, Standard Collection 2565, Michel 2567, Yvert 2490.
Perforation: comb 12½ x 12.
Colors: Multicolor.
Printing: Offset lithography.
Print run: 2,000,000.