Sketches of Figures of the Virgin Kneeling, Saint Peter Standing, Seated Allegorical Figures of Faith and Charity, and Child Standing on a Corbel (? ) (recto) ; Sketches of Figures of Saint Sebastian Standing and the Virgin and Child with Angels (verso), 1487?88, Pen and brown ink, over leadpoint or black chalk, on rose-washed paper, 10 13/16 x 7 13/16in. (27. 4 x 19. 8cm), Drawings, Attributed to Francesco di Simone Ferrucci (Italian, Fiesole 1437?1493 Florence), To judge from the drawing style and subject matter, Ferrucci was strongly influenced by the Florentine sculptor Andrea Verrocchio (1435?1488). Although he was trained by his father, Ferrucci may have been Verrocchio's assistant in the 1470s; Verrocchio's workshop offered a training ground for many of the brilliant draftsmen of late-fifteenth-century Florence