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Fig. 6 | Heritage Science

Fig. 6

From: Uncovering the Oppenheimer Siddur: using scientific analysis to reveal the production process of a medieval illuminated Hebrew manuscript

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

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