This birth date is maintained in his School Leaving Certificate, his extensive tsarist Russia police file, a police arrest record from 18 April 1902 which gave his age as 23 years, and all other surviving pre-Revolution documents.
This birth date is maintained in his School Leaving Certificate, his extensive tsarist Russia police file, a police arrest record from 18 April 1902 which gave his age as 23 years, and all other surviving pre-revolution documents.