རྩ་གསུམ་ཐིག་ལེ་ལས། སེར་བསྲུང་ཁྲོ་ཆུའི་མཁའ་སྤྱོད་བཞུགས། (rtsa gsum thig le las ser bsrung khro chu'i mkha' spyod bzhugs) [Late 19th century]

From the essence of the three roots: the celestial realm of melted metal that defends against corruption.

Owner of original material: Hong Qi. Extent & format of original material: 1 text of 5 paper folios.