Detail of a miniature of John mounting a ladder towards the open doors of heaven, while an angel takes him by the wrist, illustrating Revelation 4: 1. Detailed record for Royal 19 B XV Title Apocalypse, with commentary (The 'Queen Mary Apocalypse'), with the prologue of Gilbert de la Porrée translated in French. Origin England, S. E. (London), or East Anglia Date 1st quarter of the 14th century Language French Script Gothic cursive Artists Follower of the Queen Mary Master Decoration 73 miniatures in colours and gold. Initials in gold on blue and rose grounds with penwork decoration in white, some with marginal extensions forming partial borders. Paraphs in rose or blue. Dimensions in mm 305 x 210 (210 x 130) Official foliation ff. 45 (+ 3 unfoliated modern parchment flyleaves at the beginning and at the end, and 2 unfoliated medieval parchment flyleaf at the beginning) Form Parchment codex Binding BM/BL in-house. 19th century. Provenance The Old Royal Library (the English Royal Library): perhaps to be identified with one of two 'Lapocalipse' included in the list of books at Richmond Palace in 1535, no. 74, or 96; Westminster inventory number 'no. 22' (f. 1), included in the inventory of books in the Upper Library at Westminster of 1542; and in the catalogue of 1666, Royal Appendix 71, ff. 14 or 15. Presented to the British Museum by George II in 1757 as part of the Old Royal Library.