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Heritage Science
Fig. 9 | Heritage Science

Fig. 9

From: Assessing the decorative techniques of two Art Nouveau glass windows by optical coherence tomography (OCT)

Fig. 9

a Detail of a restored flower on the left panel in the Dining Room window (Spot 8). OCT tomograms: b Tomogram 90, showing the incorrect alignment of glass pieces and the presence of a void on the glue-glass boundary (however, the presence of a bubble inside the adhesive cannot be excluded); c Tomogram 49, showing the glass pieces at different levels due to a careless restoration. Dotted line: cracks fixed with glue. The tomograms are shown on the same scale

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