http://www.kunsthaus.ch/en/sammlung/restaurierung/beispiele-aus-der-praxis/max-ernst/versteckte-schaeden/versteckte-schaeden-schematische-darstellung/

Kunsthaus Zürich

Hidden damage

This image shows a schematic part of the newer coats of paint (in red) on the lower row of panels.
This image shows a schematic part of the newer coats of paint (in red) on the lower row of panels.