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Fig. 4 | Heritage Science

Fig. 4

From: Uncovering the illegible: multi-analytical approach to reveal paint stratigraphy of corroded signposts from the Auschwitz-Birkenau State Museum

Fig. 4

Molecular identification of the pigments and binders used for object PMO-U1 a the spectrum of yellow layer 4 of sample PMO-U1-01 (black) in comparison with the reference spectra in IRUG database for cellulose nitrate (green) and chrome yellow (yellow). b FTIR spectrum of black layer 5 of sample PMO-U1-01 (black) in comparison with the reference spectra in IRUG database for linseed oil (grey), barite (blue) and quartz (dark grey). c The spectrum of white layers 6 and 7 of sample PMO-U1-01 (black) in comparison with the reference spectra in IRUG and Hummel databases for linseed oil (grey) and zinc white (cyan)

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