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Figure 5 | Heritage Science

Figure 5

From: An investigation of the lead tin yellows type I and II and their use in Bohemian panel paintings from the Gothic period

Figure 5

Master of the Litoměřice Altarpiece, St Catherine Altarpiece – St Catherine before the Emperor Maxentius (O 577). a The painting and cross-sections of the samples collected from the yellow stocking (lead-tin yellow type I, yellow ochre, lead white, vermilion) and green cloak of the Emperor (lead-tin yellow type I and II, verdigris, lead white). Photo©2014 National Gallery in Prague. b Raman spectra collected from the yellow grains in the green layer, sample collected from the green cloak of the Emperor, painting in Figure 5a. In the green layer both types of yellow were detected: 1) Raman spectrum collected from the yellow grain 1 which shows the characteristic Raman bands of lead tin yellow I; 2) Raman spectrum of the standard pigment lead tin yellow type I; 3) Raman spectrum collected from the yellow grain 2 corresponding to the pigment lead tin yellow type II; 4) Raman spectrum of the standard pigment lead tin yellow type II.

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