Title: Dpal sa skya paʼi yab chos kyi nying khu ʼkhor lo sdom paʼi dam paʼi chos ʼbyung baʼi tshul legs par bshad pa bde mchog chos kun gsal baʼi nyin byed
Description: History of the Chakrasamvara Tantra in India and Tibet. Written in the year 1638 at Sakya Monastery.