3 fols., fols. 12-13 and another fol. Generation stage practice. By phrase search in TBRC I think this is a version of Gaganāmala-supariśuddha-dharmadhātu-jñānagarbha (Nam mkha' dri ma med pa shin tu yongs su dag pa chos kyi dbyings kyi ye shes kyi snying po), Tôh. no. 2589. (Dan Martin's Hurried Notes)