Tibet.- Sutra of Properly Arranged Establishment in Buddhahood or Confession Sutra, manuscript in Tibetan, on paper, 97 leaves, stained black and varnished, text in silver-coloured ink to recto and verso, in 6 lines except on opening leaves, which have text in one, two, three, four and five lines, some leaves frayed and chipped at edges, some portions of loss, mainly affecting peripheral leaves, occasional worming, dust-soiling (affecting legibility at points), leaves loose, housed in a modern cloth drop-back box, each leaf c.130 x 550mm., [Western Tibet, Ladakh], [c.14th-15th century].*** A beautifully calligraphed and complete Buddhist Sutra manuscript from Tibet, dealing with the confession of moral downfalls. Provenance: Library of the Philosophical Research Society (founded 1934); Christie's New York, 18-19 September 2002, lot 215, purchased by a private UK collector.