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Fig. 3 | Heritage Science

Fig. 3

From: Aiding the cleaning of four 19th-century Tsimshian house posts: investigation of museum-applied surface coatings and original polychromy

Fig. 3

Transmission FTIR spectra of two coating samples, i.e. a S2 from house post 16/565 and b S3 from house post 16/568. In spectrum a, bands at 1652, 1278, 1158, 1117, 1072, 843, and 750 cm− 1 are attributed to CN, while other compounds identified include gypsum and an organic medium. In spectrum b, bands at 2987, 2937, 2922, 2864, 1736, 1430, 1415, 1375, 1248, 1136, 1105, 1025, and 945 cm− 1 are assigned to PVAcet

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