This study investigates the earliest surviving Tibetan paper, from the Dunhuang cave library, using paper fibre analysis combined with codicological, palaeographical and textual information. The hypotheses tested by this method concern the regional origins and production centres of early Tibetan paper and methods for dating this material. Using overlapping typologies, we classify a sample of manuscripts into coherent groups, relating them to particular 'book cultures'. By linking three main manuscript groups to different geographical regions, we offer new insights into an important manuscript collection, and show that the method of overlapping typologies has the potential to yield further insights. [ABSTRACT FROM AUTHOR]