Very nice, rare set.

Felix Edmundovich Dzerzhinsky (11 September [O.S. 30 August] 1877 – 20 July 1926), nicknamed "Iron Felix", was a Bolshevik revolutionary and politician. From 1917 until his death in 1926, he led the first two Soviet secret police organizations, the Cheka and the OGPU, establishing state security organs for the post-revolutionary Soviet regime. He was one of the architects of the Red Terror and de-Cossackization.