Plaster works, such as this bas-relief, require diagnostic procedures, material analysis, and analysis of their constitutive techniques, which are fundamental for the conservation and recovery of modeled works. These are often subject to structural fragility, erosion, detachments, and surface deposits. Thanks to interventions such as cleaning, consolidation, filling of lacunae (gaps), formal reintegration, and eventual final protection, full respect for the original work and its historical and artistic value is guaranteed.