By Anonymous (not verified) , 8 August 2025 Shelfmark Harley 531 Artefact type manuscript Evidence code/letter (Ker) e Evidence description evidence from an ex-libris inscription or note of gift to an institution Ownership / provenance notes Catalogue URL https://mlgb3.bodleian.ox.ac.uk/mlgb/book/1008/ https://web.archive.org/web/20160125194646/https://mlgb3.bodleian.ox.ac.uk/mlgb/book/1008/ Catalogue key / ID 1008 Modern holding institution London – British Library Medieval repository Cambridge, Cambridgeshire, Peterhouse (Collegium Sancti Petri) Source (bibliography) MLGB3 Work label (as given) Mathematica Modern institution (raw label) British Library, London