Ministry of Medium Machine-Building

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. == History == The ministry was established on the basis of the First Chief Directorate (nuclear industry) and the Third Chief Directorate (development in the area controlled missiles, aircraft, rockets and long range missiles) of the Council of Ministers of the USSR as well as the Central Board of Industrial Building of the Ministry of Internal Affairs of the USSR (Главпромстрой МВД) charged with construction of nuclear installations, all of which were in operation since September 1942.

Source: Wikipedia — Ministry of Medium Machine-Building (CC BY-SA 4.0)