M.K.V.K.P. (Moscow Committee of the All-Union Communist Party Bolsheviks)
In 1918, when the Bolshevik Party became the ruling party of Russia, their name was changed to the All-Russian Communist Party. They renamed the Party in 1925 as the All-Union Communist Party, subsequent to the founding of the USSR. In 1952, the Party changed its name to the Communist Party of the Soviet Union. The Moscow Committee was the main seat of the Party.
Sources & Citations
Roszkowski, W. (2008). Biographical dictionary of Central and Eastern Europe in the twentieth century. Armonk: Sharpe.
britannica.com (Bolshevik Party)