The results have allowed to discover how these works were made.
Important data for understanding their history and for their conservation.
This is a work related to the thesis of Pierre-Olivier Autran, directed by Pauline Martinetto (Institut Néel-CNRS, teacher-researcher, UGA) and Catherine Dejoie (ID22, ESRF), in collaboration with the departmental museum Champollion, in Vif, and its curator Caroline Dugand.