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Heritage Science
Fig. 5 | Heritage Science

Fig. 5

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

Fig. 5

a Detail of middle bear figure on house post 16/565 under UV illumination, in which CN application displays a milky-white fluorescence emission. The photograph was taken during cleaning with CN removed from the half-oval at center. b UV light microphotograph of cross section S1 from house post 16/567, where CN is visible as a discrete, thin layer on the wood under layers of museum-applied paint and PVAcet

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