in a Christie's sale in December 1988 and is the second book known to have survived from the Tintern library. Under ultraviolet light the erased 15th-century inscription Ista biblia olim Abbathie de Tinternie (This Bible used to [belong to] Tintern Abbey) is visible to confirm the provenance of the manuscript. Beunans Ke (NLW MS 23849D) is a 16th-century Cornish manuscript discovered among the papers of Professor J. E. Caerwyn Williams after they were deposited in the National Library in 2000. Groups of manuscripts in the general collection include: Rare books There are many rare books in the National Library of Wales including the three earliest books printed in Welsh, Yny lhyvyr hwnn (1546), Oll synnwyr pen Kembero ygyd (1547) and A Dictionary in Englyshe and Welshe (1547) by William Salesbury. The Library also holds the first Welsh translation of the complete Bible (1588). The National Library's rare books include collections of incunabula, sixteenth-century European imprints, private press publications, bindings and scientific works. Thanks to the collections of printed books that were donated by Sir John Williams, J. H. Davies and Edward Humphrey Owen, the Library has particularly strong holdings of publications in the Welsh language from before 1912. Of the two hundred and eighty-six Welsh books published between 1546 and 1710, the National Library possesses copies of two hundred and ten, and has facsimiles of others that exist as a unique copy in another institution. Many of the named collections of printed books include early or otherwise rare books: Sir John Williams Collection The Sir John Williams Collection forms the nucleus of the Library's printed books collection. The collection of approximately 23,360 volumes contains many items of importance to the history of Welsh printing, which were donated to the Library when it was established in 1907. Nineteen of the first twenty-two books published in Welsh are present, of which fourteen were acquired from the Shirburn Castle library with the Llanstephan Manuscripts. The collection from Shirburn Castle comprises 193 printed books and pamphlets that were all printed before 1750; a superb miscellany of books from the first century of Welsh printing. Some of the particularly significant items that belonged to Sir John are: [In this book ...] (1546) by Sir John Prise, the only known copy of the first book printed in Welsh. by Gruffudd Hiraethog (1547). William Salesbury's A Dictionary in Englyshe and Welshe (1547). A translation of the New