Chemical Composition: ICP-MS/AAA data from sample, Leaded Copper-Tin-Antimony Alloy:
Cu, 81.34; Sn, 3.37; Pb, 9.37; Zn, 0.028; Fe, 0.23; Ni, 0.07; Ag, 0.05; Sb, 5.38; As, less than 0.10; Bi, less than 0.025; Co, 0.158; Au, less than 0.01; Cd, less than 0.001
J. Riederer
Chemical Composition: XRF data from Tracer
Alloy: Leaded copper-tin-antimony alloy
Alloying Elements: copper, tin, lead, antimony
Other Elements: iron, nickel, silver
K. Eremin, January 2014
Technical Observations: The frog was modeled directly in wax and cast solid. It is in very good condition. The surface is well preserved with some black-colored wax present. There is some evidence of deep corrosion and long-term burial. The patina is dark greenish brown.
Nancy Lloyd (submitted 2001)