Colophons as sources: Historical information from some Brag dkar rta so Xylographies

Tibetan colophons are not only a very intriguing and peculiar literary subject to study, but also significant historical sources to develop. This article has a threefold aim: to present colophons as sources, to provide a detailed description of the surviving Brag dkar rta so works, and to give examples of translation. By extracting information from colophons, it is possible to have a most accurate picture of lHa btsun Rin chen rnam rgyal (1473-1557), one of gTsang smyon Heruka's closest disciples, and his entourage, and the progress of lHa btsun's work at Brag dkar rta so, a well-known monastery founded by him,