1973 Sc 4160-4162 BL 88 Cosmonautics Day Scott 4072

1973. Cosmonautics Day.
Catalogs: Scott 4072, Standard Collection 4160-4162 BL 88, Mi BL 85, Yt BF 84.
Condition: MNHOG.
Issued on: April 12, 1973.
Format: Souvenir Sheet.
Perforation: frame 12 x 11½.
Printing: Photogravure.
Size: 75 x 100 mm.
Colors: Multicolor.
Face value: 60 Russian kopek.
Quantity: 900,000.