Chemical Composition: ICP-MS/AAA data from sample, Leaded Brass:
Cu, 72.83; Sn, 1.26; Pb, 2.48; Zn, 22.66; Fe, 0.35; Ni, 0.08; Ag, 0.05; Sb, 0.13; As, 0.16; Bi, less than 0.025; Co, less than 0.005; Au, less than 0.01; Cd, 0.002
J. Riederer
Technical Observations: The patina is light green and soft. The heavy layers of green corrosion appear modern, and no underlying red corrosion layer is present. The details in the face are well preserved, but the softened features give the appearance of an object that was cast from a mold taken from an existing copper alloy object. Analysis shows that the alloy is 22% zinc, an unlikely concentration for an antiquity.
Henry Lie (submitted 2012)