Ministry_of_Medium_Machine_Building_of_the_USSR
Ministry of Medium Machine-Building
USSR government ministry supervising nuclear industry
The Ministry of Medium Machine-Building (Russian: Министерство среднего машиностроения СССР - Минсредмаш СССР, МСМ СССР, also known as Sredmash) was a government ministry of the Soviet Union which supervised the Soviet nuclear industry, including production of nuclear warheads.