Chemical Composition: ICP-MS/AAA data from sample, Leaded Bronze:
Cu, 61.08; Sn, 4.5; Pb, 33.87; Zn, 0.021; Fe, 0.09; Ni, 0.04; Ag, 0.06; Sb, 0.12; As, 0.16; Bi, less than 0.025; Co, 0.055; Au, less than 0.01; Cd, less than 0.001
J. Riederer
Technical Observations: The patina is green and thin. There is a reddish area on top of the head, perhaps caused by contact with some organic material during burial. The surface was cleaned after excavation, and some scratches and recarving of details from this treatment are apparent, such as the metallic surface that shines through the patina in some areas. The metal is porous, as can be seen especially on the back. There is a small hole in the bull’s forehead, but it is not clear whether this was intentional or a flaw. A sandy clay material, which may be from burial or perhaps from casting, is preserved on the inside of the head.
The hollow head was cast by the lost-wax process. The rings were fashioned directly and attached to the head in the wax. The straight element that extends down from the head through the bottom ring may have also served as a sprue.
Francesca G. Bewer (submitted 2002)