"Middle Part from 'The Ocean of Truth' - the Preliminaries to All the Teachings along with Advices [on how to practice them]" by Ngag gi Dbang phyug Grags pa (dwags po mkhan chen ngag dbang grags pa) (15th century).
Extent and format of original material: 1r-8v.
Physical characteristics: Xylograph, Russian paper: 55 x 9 cm; inner frame 48 x 6,5 cm, black ink, 6 lines per page.
Volume and issue number: TT-08260.