TheCodeBreakers
He was executed in 1938 in the great Stalinist purges.
Afterwards, it was discovered that he had, most unsocialistically,
hoarded gold and silver coins.
The Spets-Otdel handled both cryptography and crypt-analysis. In
1933, the cryptographers worked in a big room on the fourth floor of a
former insurance building that the O.G.P.U. occupied at 6 Lubyanka
Street. The cryptanalysts were then on the top floor of a former Ministry
of Foreign Affairs building at the corner of Lubyanka Street and
Kuznetsky Bridge Street. The comings and goings of ordinary tenants on
the lower floors and of the members of a diplomats' club disguised the
presence of the office. In 1935, both cryptographers and cryptanalysts
moved into the new building of what was now the N.K.V.D. at 2
Dzerzhinsky Street (named for the first head of the secret police, Felix
Dzerzhinsky).
The cryptographic division was subdivided into several sections. There
were separate sections, for example, for the N.K.V.D. network inside
annaabi.ee 
