1968 SC 3503 14th Soviet Trade Union Congress Scott 3429

1968. 14th Soviet Trade Union Congress.
Catalog numbers: Scott 3429, Standard Collection 3503, Michel 3454, Yvert 3329.
Condition: MNHOG.
Issued on: January 18, 1968.
Perforation: comb 12½.
Printing: Photogravure.
Size: 32.5 x 32.5 mm.
Colors: Multicolor.
Face value: 6 Russian kopek.
Quantity: 4,000,000.