137 The painting “Purgatory” of the Mary retable particularly concentrated in areas that had previously undergone treatment. The largest paint loss was found on the body of one female “soul” at the right-hand side. The entire canvas is relaxed and enlarged, while at the same time the canvas has shrunken in many local areas resulting in small tenting paint flakes. The solvent-damaged, blanched and leached paint surface – caused by earlier varnish removal treatments – became visible during varnish removal. The surface of the paint, particularly in some red and brownish details and in shades of the incarnates, was damaged by aggressive cleaning with strong solvents or chemicals. At the higher weave points the paint layer was severely thinned, revealing lower layers and the preparation from underneath. Significant details and outlines were missing e.g. curls, shades, faces, flames. The extent of retouches and overpaint indicated significant previous damage to the paint layer and subsequent restoration treatment. Some losses were filled with a white-yellowish filling material. These areas of reconFig. 208: “Purgatory”; condition as found: dirt, wax and disturbing overpaint; after removal of overpaint and during retouching
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