Fig. 1: Raphael, Studies of the Christ Child, 1513-14.
From: Materiality and techniques revealed in drawings by Raphael, Leonardo da Vinci, and Perugino
The Metropolitan Museum of Art, New York, Purchase, Lila Acheson Wallace Gift, 1997 (1997.153). a Visible light image. b Ultraviolet-induced visible fluorescence (UVF) image. c Combined Fe (orange) and Pb (white) distribution maps. Blue arrows indicate areas of what appear to be features not intended by Raphael and possibly later repairs. d Mn (purple) distribution map.
