1. Department of Cultural Heritage, University of Bologna, Via degli Ariani 1, 48121 Ravenna, Italy
2. Department of Industrial Engineering, University of Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
3. Department of Musicology and Cultural Heritage, University of Pavia, Corso Garibaldi 178, 26100 Cremona, Italy
4. Arvedi Laboratory of Non-Invasive Diagnostics, CISRiC, University of Pavia, Via Bell’Aspa 3, 26100 Cremona, Italy
5. Museo Archeologico Nazionale di Napoli, 80135 Napoli, Italy