1. LAQV‐REQUIMTE and Department of Conservation and Restoration, Faculty of Sciences and Technology NOVA University of Lisbon Caparica Portugal
2. IEM, Faculty of Social Sciences and Humanities NOVA University of Lisbon Lisbon Portugal
3. Institute of Heritage Science (ISPC) National Research Council (CNR) Milan Italy
4. Centro per la Conservazione ed il Restauro dei Beni Culturali “La Venaria Reale” Venaria Reale (Turin) Italy