Collection of Tibetan manuscripts, largely ritual texts associated with the Bon-po religious tradition. The documents were collected from Tibetan villages in 'Brug-chu (Ch. Zhouqu) County in Gannan Tibetan Autonomous Prefecture, Gansu Province. Also includes several propiatory texts, brief astrological works, teacher lineages, etc.

This set of documents is rich in content and has a long history. It provides a large number of reliable first-hand materials for the study of the origin and development of ancient civilizations on the Kansu-Tibet Plateau, astrology, philosophical thoughts, religious beliefs, social life, language and writing, and has a very high historical value. , inheritance value and academic research value.Collection of Tibetan manuscripts, largely ritual texts associated with the Bon-po religious tradition. Some of the scriptures contain a large number of mysterious and incomprehensible Bon religious symbols and ancient Tibetan abbreviations before the Tibetan language was determined including "Smar chung" font.The documents were collected from Tibetan villages in 'Brug-chu (Ch. Zhouqu) County in Gannan Tibetan Autonomous Prefecture, Gansu Province. Also includes several propiatory texts, brief astrological works, teacher lineages, etc.