Issued by the USSR (Union of Soviet Socialist Republics) in 1986, this 5-kopeks commemorative stamp celebrates the 250th anniversary of the industrial city of Chelyabinsk. The design highlights Soviet industrial strength with heavy machinery, modern urban architecture, and a prominent Lenin monument symbolizing socialist development. Chelyabinsk was one of the USSR’s major metallurgical and engineering centers, especially significant during wartime industrial expansion. This issue reflects the strong Soviet tradition of honoring industrial cities and regional economic achievements. A classic thematic piece for collectors of industry, urban development, and Soviet regional commemoratives.