Lost Wax Bronze Casting: A Photographic Essay on this Antique and Venerable Art

alloy Ancient ancient Egypt armature artisan artist BENVENUTO CELLINI brass brazing breather tube bronze patch bronze surface brushed burn-out burned Camaiore CASTING BRONZE cavity CELLINI ON GOLDSMITHING circulatory system clay Close-up coat colors completely copper core material crucible dental investment Donatello final finished fire fireclay core fireclay investment fireclay mold foundry funnel gate and vent GIORGIO VASARI GOLDSMITHING AND SCULPTURE Greek Harry Jackson heat hole hollow interior horse horse's Jacques Lipchitz liquid lost wax casting lost wax method master mold melted molten bronze molten metal Museum nails and pins negative critical surface original wax outer fireclay outer investment outer mold oven painted patina Paul Manship PHASE photos 66 piece plaster positive critical surface POURING CUP removed Renaissance reproductory wax retouching rider's rubber mold rubber negative runners sand schematic drawing sprue tie rods TREATISES OF BENVENUTO wax is lost wax shell welding York