Postage stamps of the USSR

USSR. Moscow. October 28, 1975. A series of three postage stamps "We Glorify You, October!" with a face value of 4 kopecks "BAM Will Put the Enormous Natural Resources of Siberia and the Far East to the Service of the Soviet People" with an image of the Baikal-Amur Mainline (top), with an image of the Novolipetsk Metallurgical Plant and the Nevinnomyssk Chemical Plant (bottom, left to right), issued by the USSR Ministry of Communications. Valentin Khukhlaev/TASS