1972 Sc 4058 All-Union Youth Stamp Exhibition Scott 3973

1972. All-Union Youth Stamp Exhibition.
Catalogs: Scott 3973, Standard Collection 4058, Mi 4008, Yt 3842.
Condition: MNHOG.
Issued on: May 17, 1972.
Perforation: comb 11½.
Printing: Photogravure.
Size: 40 x 28 mm.
Colors: Multicolor.
Face value: 4 Russian kopek.
Quantity: 3,600,000.