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Fig. 4 | Heritage Science

Fig. 4

From: Charcoal or black stone? Reconstructions as a tool to study the behaviour of dry underdrawing materials within the paint structure of sixteenth century panel paintings

Fig. 4

©HPM, HERCULES Lab—U. Évora, Portugal

Infrared details of the underdrawing from paintings of the São Francisco (a) and Sousel (d) altarpieces with the location (green arrow) of the samples viewed in cross-section in the optical microscope under incident light (OM-Vis) (b, e) and ultraviolet radiation (OM-UV) (c, f). All images

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