Fig. 9From: Colour identification, degradation processes and findings in a fifteenth-century Book of Hours: the case study of Cofre n.º 31 from Mafra National Palacea Skin tone created with lead white and minium (angel’s face, f.25r); b Raman spectrum showing the characteristic bands of minium (121 and 548 cm−1) and of lead white (1049 cm−1)Back to article page