Chemical Composition: ICP-MS/AAA data from sample, Brass:
Cu, 90.62; Sn, 1.3; Pb, 0.7; Zn, 5.86; Fe, 1.17; Ni, 0.05; Ag, 0.05; Sb, 0.07; As, 0.17; Bi, less than 0.025; Co, less than 0.01; Au, less than 0.01; Cd, 0.004
J. Riederer
Chemical Composition: XRF data from Tracer
Alloy: Mixed Copper Alloy
Alloying Elements: copper, tin, zinc
Other Elements: lead, iron, antimony, arsenic
K. Eremin, January 2014
Technical Observations: The patina is brown with green and an orange-brown false surface, which is soluble in acetone. The object is sound. The solid-cast bird pendant is a modern fabrication with no authentic corrosion.
Carol Snow (submitted 2002)