Chemical Composition: ICP-MS/AAA data from sample, Leaded Bronze:
Cu, 91.36; Sn, 5.5; Pb, 2.85; Zn, 0.011; Fe, 0.04; Ni, 0.01; Ag, 0.04; Sb, less than 0.05; As, 0.18; Bi, less than 0.025; Co, 0.012; Au, less than 0.01; Cd, less than 0.001
J. Riederer
Chemical Composition: XRF data from Tracer
Alloy: Leaded Bronze
Alloying Elements: copper, tin, lead
Other Elements: iron, nickel, silver, arsenic
K. Eremin, January 2014
Technical Observations: The patina consists of various green corrosion products with some red cuprite and blue azurite over brownish black. The surface is worn, but the structure is intact.
The bird is a solid cast. There may have been some working of the metal to flatten the tail. Tool marks in the corrosion are modern.
Carol Snow (submitted 2002)