Career
From 1919 the head of the publishing house of the magazine Kommunisticheskii Internatsional in Petrograd. In 1921 he entered the Secretariat of ECCI. In 1924-1927 he was the Polpred of the Soviet Union to Estonia (1924), Denmark (1924-1933), Greece (1934-1937) and Albania (1935-1937). From January 1933 he was the referent of ECCI for the Scandinavian countries.
He was arrested during one of the purges and executed.