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Orenburg Gas Processing Plant
USSR. Orenburg. December 1975. The advance team of the sulfur recovery unit No. 2 of the Orenburg gas processing plant: senior machinist I. I. Duba, operators Aleksandr Ivanovich Olkhovoy, A. P. Ryazantsev and senior operator Fyodor Timofeevich Demin (from left to right). The exact date of the shooting is unknown. Boris Klipinitser/TASS