1984 Sc BL 178 5th Philatelic Society Congress Scott 5171A

1984. 5th Philatelic Society Congress.
Catalog numbers: Scott 5171A, Standard Collection BL 178, Michel BL 175, Yvert BF 174.
Condition: MNHOG.
Issued on: October 4, 1984.
Format: Souvenir Sheet.
Perforation: frame 11½ x 12.
Printing: Photogravure and Recess.
Size: 78 x 65 mm.
Colors: Multicolor.
Face value: 50 Russian kopek.
Quantity: 550,000.