Chemical Composition: ICP-MS/AAA data from sample, Bronze:
Cu, 78.23; Sn, 18.57; Pb, 1.8; Zn, 0.09; Fe, 0.14; Ni, 0.53; Ag, 0.14; Sb, 0.19; As, 0.31; Bi, less than 0.025; Co, less than 0.005; Au, less than 0.01; Cd, less than 0.001
J. Riederer
Chemical Composition: XRF data from Tracer
Alloy: Bronze
Alloying Elements: copper, tin
Other Elements: lead, iron, silver, antimony
K. Eremin, January 2014
Technical Observations: This object was cast by the lost-wax process. Because the top is thicker-walled than the sides, it looks as if metal had pooled at the bottom of the upturned shape. This probably accounts for the fact that the object does not produce a ring. Much of the relief decoration revealed by x-radiography is hidden by surface accretions, although traces of the textured bands are visible on the cleaned portions of the outer surface. Cone-shaped elements stand proud of the inner surface and in some cases protrude beyond the bottom edge of the rim, again more easily visible in the x-radiographs. These could be sprue-ends, that is, the remains of the casting process, but the small, regular intervals between them and the size of the object suggest that they served a decorative or functional purpose. Thick layers of green and red corrosion cover most of the surface.
Francesca G. Bewer
