1975 Sc 4406 BL 106 International Stamp Exhibition “Socphilex-75” Scott 4323

1975. International Stamp Exhibition “Socphilex-75”.
Catalogs: Scott 4323, Standard Collection 4406 BL 106, Mi BL 103, Yt BF 102.
Condition: MNHOG.
Issued on: April 25, 1975.
Format: Souvenir Sheet.
Perforation: frame 12 x 12¼.
Printing: Offset lithography.
Size: 68 x 94 mm.
Colors: Multicolor.
Face value: 50 Russian kopek.
Quantity: 1,150,000.