16. Portrait of a man in a red cap, by Antonello da Messina. c.1475. Panel, 35.6 by 25.4 cm. (National Gallery, London).
Attributed works:
17. Drawing with colour notes of Fig.16 when in the collection of Sig. Av. Molfino in Genoa, by G.B. Cavalcaselle. Pencil on paper in a notebook, sheet 30.9 by 20.8 cm. (Biblioteca Nazionale Marciana, Venice, Cod. Marc.It. IV, 2032-12273 fasc. XVI, fol.30v).
Attributed works:
18. View of the back of Fig.16 with the inscription on a piece of paper in the hand of Roberto Canonici.
Attributed works:
19. Letter to an unidentified ‘Cavalier d’Este’ written by Roberto Canonici, 13th April 1605. (Archivio di Stato, Modena).