Chemical Composition: ICP-MS/AAA data from sample, Copper:
Cu, 97.94; Sn, less than 0.25; Pb, 1.79; Zn, 0.002; Fe, 0.04; Ni, 0.04; Ag, 0.11; Sb, 0.08; As, less than 0.10; 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: Leaded Copper
Alloying Elements: copper, lead, iron
Other Elements: silver
K. Eremin, January 2014
Technical Observations: The patina is dark green with areas of light green and an underlying layer of red. Half of the surface is obscured with raised green corrosion products. The remainder is scraped down to the red layer below the original surface. There are numerous small voids, which appear to be casting flaws.
The freely formed and imperfect shapes point to a wax model made directly without the use of molds. There is no clear evidence of any surface decoration.
Henry Lie (submitted 2012)