“Casting ”

Lost-wax or precision casting is an ancient technique, dating back to the Bronze Age and used for centuries both in sculpture and in jewelry-making. World-famous antique sculptures such as the Riace Bronzes, the Capitoline Wolf and the Chimera of Arezzo were created using this technique, as was most Greek, Etruscan and Roman jewelry.

Casting reached its high point during the Italian Renaissance with works  such as Perseus with the Head of Medusa and the Salt Cellar by Benvenuto Cellini.

The process begins with the creation of a wax model, which is then covered with a heat-resistant material. 

Once  hardened, this mold is heated and the liquified wax is removed, leaving an exact negative impression of the wax model, or a casting mold into which molten metal can be poured.