Explanatory notes
… They may be in any material (stone, reconstituted stone, terra‑cotta, wood, ivory, metal, wax, etc.), in the round, … “copies” in marble, wood, wax, bronze, etc., and a few in terra‑cotta or in plaster. Not only the preliminary model, … has intervened at each stage with additional modelling, corrections to casts, and for the patina imparted to each …