1978 Sc 4816 International Stamp Exhibition Praga 78 Scott 4693

1978. International Stamp Exhibition Praga 78.
Catalog numbers: Scott 4693, Standard Collection 4816, Michel 4766, Yvert 4523.
Condition: MNHOG.
Issued on: August 29, 1978.
Perforation: comb 11½.
Printing: Photogravure and Recess.
Size: 40 x 28 mm.
Colors: Multicolor.
Face value: 6 Russian kopek.
Quantity: 5,000,000.