1968 Sc 3601. 50 anniversary of the Nizhny Novgorod radio laboratory of V.I.Lenin. Scott 3526

1968. To the 50 anniversary of the Nizhny Novgorod radio laboratory of V.I.Lenin.
Catalogs: Scott 3526, Standard Collection 3601, Michel 3551, Yt 3421.
Issued on: 1968-10-26.
Perforation: comb 11½
Printing: Photogravure
Size: 40 x 28 mm
Colors: Dark greenish-blue, black and brownish-yellow
Face value: 4 Russian kopek
Print run: 4,000,000