Figure 3

Master of the Vyšší Brod Cycle, Vyšší Brod Cycle - Descent of the Holy Ghost (O 6794). a Cross-section and microscopical preparation of sample taken from the yellow cloak on the left side. The yellow layer of lead tin yellow type II is located on the white ground layer of chalk. Microscopical preparation shows the isotropic glassy like particles with lemon yellow internal reflections, translucent with light yellow colour and very high relief. Photo©2014 National Gallery in Prague. b Raman spectra collected from the yellow layer of the sample. The spectra show the typical Raman bands of lead tin yellow type II: 1) Raman spectrum collected from the sample 07-48-10 no. 1, 2) Raman spectrum collected from the sample 07-48-10 no. 2, 3) Raman spectrum of the standard pigment lead tin yellow type II, 4) Raman spectrum of calcite (chalk).