Chemical Composition: ICP-MS/AAA data from sample, Leaded Bronze:
Cu, 69.54; Sn, 25.14; Pb, 5.03; Zn, 0.009; Fe, 0.07; Ni, 0.02; Ag, 0.02; Sb, less than 0.05; As, 0.16; Bi, less than 0.025; Co, 0.015; Au, less than 0.01; Cd, less than 0.001
J. Riederer
Technical Observations: The surface of 1953.83 is worn and exhibits a dark brown patina, with spots of green and red. It was cast in one piece. The hoop of the ring has been broken and repaired with modern solder. There are cracks in the side of the bezel behind the head and neck and opposite the nose, and there is a gash in the cheek of the woman.
All four rings have lost some detail from corrosion and wear, with 1986.541 showing considerable loss of detail. All are broken at the points where the front meets the ring. 1986.543 has no ring. 1986.541 has a modern lead repair, perhaps with the original ring, and 1953.83 also has a modern lead repair with what appears to be a section of a modern ring.
The rings appear to be cast with no clear evidence of cold work in the relief decoration. The relief on 1986.543 is slightly higher than the other two relief rings; 1986.542 is carved in intaglio.
Henry Lie (submitted 2001)