The restoration intervention will respect the patina considered an integral part of the sculpture, a sign of the passage of time and major evidence of the degradation processes. Once cleaned of the soluble salt deposits and treated with a corrosion inhibitor and protective agent, this coating will still be able to provide insulation. Different methods will be used to remove materials deemed extraneous and harmful to conservation. These include general dirt (guano, grease marks, deposits of atmospheric particulate), sediments, “black crusts” and any geodesic lines, newly formed compounds due to chemical attack on the patina, outcropping soluble salts from inside the statue or caused by environmental pollution, lime encrustations, aged finishes and protective layers.

The intervention therefore aims to re-establish an adequate state of conservation and at the same time undertake limited colour balancing to enhance the monument’s components following the criteria of minimum intervention, maximum selectivity and reversibility of operations.