1970 Sc 3861-3866 Tourism in USSR Scott 3783-3788

1970. Tourism in USSR.
Condition: MNHOG.
Catalog numbers: Scott 3783-3788, Standard Collection 3861-3866, Michel 3812-3817, Yvert 3670-3675.
Issued on: November 29, 1970.
Perforation: comb 12 x 11½.
Printing: Photogravure and Recess.
Size: 37 x 52 mm.
Color: Multicolor.
Face value: 4 Russian kopek; 6 Russian kopek; 10 Russian kopek; 12 Russian kopek; 14 Russian kopek; 16 Russian kopek.
Quantity: 6,000,000; 5,000,000; 4,500,000; 5,000,000; 4,500,000; 3,000,000.