LRI4647169 Symbol of the masons (Corporation table, 17th century) by Unknown Artist, (17th century); Museo dell\'Opera del Duomo (MODO), Orvieto, Umbria, Italy; (add.info.: Table des corporations, symbol of the arts of the city, detail of the emblem of the macons - (Corporation, symbol of the masons, 17th century) 17th century Orvieto, Museo del \'Opera del Duomo); Luisa Ricciarini; out of copyright.