For those enthusiasts interested in technical art history please see a fascinating snapshot and description of the image cross section at Fig. 1: Subsidiary mural of the Hebrew prophet Moses.
This image is of a paint cross section prepared from a sample taken from Moses’ right foot. The cross section was examined with an optical microscope. 200x magnification. Photo: Mark Richter, Kelvin Centre for Conservation and Cultural Heritage Research, University of Glasgow.
The paint cross section shows a layer build-up which is very similar to the one identified in the Ascension mural on the ceiling. Typical is the thick white priming consisting of lead white.
More details about why this is significant will follow once Glasgow University’s results are published. Check back soon for some exciting news!