Fig. 3From: Multi-technique analysis of pigments on sandstone sculptures: Renaissance re-painting of a Roman reliefGriffin peltae plumage. A Detailed image; B In situ microphotograph; C LM image showing pigment and resinous layers in cross section; D Microsample (scale on images); E FTIR–ATR spectrum of organic resin; F FTIR–ATR spectra of quartz and lead sulphateBack to article page