Chemical Composition: ICP-MS/AAA data from sample, Leaded Bronze:
Cu, 83.88; Sn, 6.87; Pb, 8.85; Zn, 0.005; Fe, 0.01; Ni, 0.04; Ag, 0.05; Sb, 0.07; As, 0.18; Bi, 0.038; Co, 0.011; Au, less than 0.01; Cd, less than 0.001
J. Riederer
Technical Observations: The patina is mostly dark olive green and reddish brown with green and red corrosion products. The animal heads show areas of dark reddish-brown metal shining through the corrosion. Some areas, such as the lower portion of the handle, have thicker layers of green corrosion. There is a dark gray material on the reverse of the siren’s head on the lower portion of the handle.
The handle is structurally sound. The central portion of the handle is very worn, possibly from use. One of the raised points on the top is badly abraded to reveal bare metal.
The solid cast bronze handle was probably fabricated by lost-wax casting with the design cut in the wax prior to casting. Rough finishing marks are present on the surface. The top of the handle has a groove where it would sit on the rim of the vessel. The handle has a groove at the top to accommodate the rim of the vessel. Three rivets were used to attach the handle to the vessel: two at the ends for the top and one for the lower end of the handle.
Carol Snow and Nina Vinogradskaya (submitted 2002)