This handwritten and handwritten document consists of seven booklets in the size of 35x21 cm. Note: Messy. This is the copy of the famous historical chronicle, Erdeni-yin tobči written by Saγang sečen in 1662. The first page includes mistakenly the title: F-4, HN-52, Tainzu Khaanii Bogd Surgaal. The last page of the document should have been the first page. Extent and format of original material: Manuscript. Owner(s) of original material: Mongolian Academy of Sciences, Institute of History and Ethnography. Original institution reference: F-4, D-1, HN-53.