Chemical Composition: ICP-MS/AAA data from sample, Brass:
Cu, 69.86; Sn, 0.49; Pb, 1.38; Zn, 28.01; Fe, 0.19; Ni, 0.03; Ag, 0.04; Sb, less than 0.02; As, less than 0.10; Bi, less than 0.025; Co, less than 0.005; Au, less than 0.01; Cd, 0.006
Technical Observations: The patina is a superficial black, red, brown, and green. The object is intact, although there are some casting flaws.
The plate with the figural scene seems to have been twisted at its join to the thin curved section, but the twisted deformation appears to have been cast, which would indicate that this object might be a cast replica of an ancient copper alloy object. No interstitial corrosion that would indicate burial is apparent. The casting flaws, lack of surface detail, and patina also suggest this may be a replica.
Carol Snow (submitted 2002)