• Illuminated puzzle initials 'Q'(ue) and 'D'(ixit), with line flourishing in blue., Leaves from a Book of Hours, containing the text for the Hours of the Virgin as said during Advent (ff. 1-3), the Penitential Psalms (ff. 4-8), Litanies (ff. 8-12), and Office of the Dead (ff. 13-21), Use of Rome

'?Bologna, first half of 15th century (opinion of Dr Otto Pacht)'. Harry and Virginia Walton, of New York: their sale, Blomsbury Auction, New York, 4 April 2009, lot 7; purchased by The British Library. Puzzle initials Master of the Brussels

• Historiated initial 'Q' of Peter, with the descender of the letter composed of a foliate extension of acanthus leaves (centre)., Cutting from a Gradual (sanctorale)

Ms 978, no. D. 218-1906. See Laurence B. Kanter and others, ~Painting and Illumination in Early Renaissance Florence 1300-1450~ (New York: Metropolitan Museum of Art, 1994), pp. 155-76 [exhibition catalogue] and Gaudenz Freuler, 'Don Silvestro dei Gherarducci', in ~Dizionario Biografico