Fig. 6 a – d Microscopic images, cross-section of sample H10-Q from the lower edge, left. a) Incident light, layer sequence from bottom to top: white primer – black underpainting – red paint layer, top lighter with blue pigment – binding agent – dark brown overpainting b) Electron microscope image (backscattered electron image), section not identical to fig. a c) Element distribution (SEM-EDX), primer: Ca (chalk) +Pb (lead white, aggregates) d) red colour layer: Hg + S (cinnabar), upper side Pb (lead white/red lead)
RkJQdWJsaXNoZXIy MTMyNjA1