Fig. 6

Pigment identification for the orange area on folio 73r, where the spectrum from PRISMS (black cross) compared with Kubelka–Munk model fit of a mixture of a vermilion and red lead; b vermilion, red lead and indigo. The insets in a shows the area where the spectrum was extracted and the inset in b shows a microscope image under ×75 magnification of the region