Issued by the Soviet Union (USSR) in 1983, this commemorative stamp celebrates the 100th anniversary of the Moscow “Serp i Molot” (Hammer and Sickle) Metallurgical Plant, one of the USSR’s most important industrial enterprises. The design highlights heavy industry symbolism with factory buildings, molten metal production, and industrial cranes representing Soviet technological strength. The dates 1883–1983 mark a century of metallurgical development. Printed in bold industrial tones, the stamp reflects socialist-era economic pride and modernization themes. A classic example of Soviet industrial propaganda philately, it remains attractive to thematic collectors of industry and labor history.