This typewritten document consists of pages in the size of 21x30 cm. It was written in 1928. There is a note: It was received from Boris Shumyatskij and others in 1958 as the 'Reason of the Revolution in Mongolia'. Extent and format of original material: Typewritten. Owner(s) of original material: Mongolian Academy of Sciences, Institute of History and Ethnography. Original institution reference: F-3, D-1, HN-928.