Fig. 13From: The identification, approaches to cleaning and removal of a lead-rich salt crust from the surface of an 18th century oil paintingCross-section of sample BMRS4 #13 (white robe) after removal of the crust showing the white paint layer and the double-coloured ground; A Darkfield illumination and B UV radiation; C The SEM-BSE images show that a fine layer of the crust is still left behind indicated by the white arrowsBack to article page