Published on the occasion of an exhibition held at the Opificio delle pietre dure, Florence, Italy, October 22-24, 2016, and at the Centro conservazione e restauro "La Venaria Reale," Venaria Reale, Italy, October 29, 2016, January 15, 2017; also published on the occasion of a seminar held at the Centro conservazione e restauro "La Venaria Reale," Venaria Reale, Italy, January 10-15, 2017.
Text in Italian with English translation.