Fig. 11From: Rethinking Jacques-Louis David’s Marat assassiné through material evidencesDetail of Marat’s left hand in visible light (top) and in IRR (bottom). One can observe from the IRR image the drawn curved line beneath the billet and a thin line painted over the fingers. The curve and the length of the item discovered in the left hand region (highlighted in red) are fully compliant with the visible feather posed on the billot (highlighted in red)Back to article page