Report on the St. Catherine’s Wheel moldmates found in the Codex Arundel and Royal Collection Trust drawings by Margaret Holben Ellis

Description: A wheel with six spokes and five curved blades extending from the outside, topped with a crown.

Also known as: Mill wheel; water wheel; with five blades surmounted by a crown.

Description of difference: N/A

Briquet comparisons: B 13546.^[1]

Found in folios: Arundel ff. 116-119; RCIN 912293.

Potential Twins: N/A

[1] Because similarities to Briquet’s watermarks continue to be included in the literature, they have been cited here. Briquet comparisons were extracted from Carlo Pedretti and Carlo Vecce in “Apparati IV, V, Filigrane,” Il Codice Arundel 263 nella British Library: edizione in facsimile nel riordinamento cronologico dei suoi fascicoli (Florence: Giunti, 1998), 58-61; Carlo Pedretti, The Codex Hammer of Leonardo da Vinci, translated into English and annotated by Carlo Pedretti (Florence: Giunti Barbèra, 1987); Carmen C. Bambach in Leonardo da Vinci Rediscovered, 4 vols. (New Haven and London: Yale University Press, 2019); and Juliana Barone, ed., Leonardo da Vinci: A Mind in Motion, exh. cat. (London: The British Library, 2019).