Chemical Composition: ICP-MS/AAA data from sample, Bronze:
Cu, 92.16; Sn, 7.32; Pb, 0.1; Zn, less than 0.002; Fe, 0.08; Ni, 0.05; Ag, 0.03; Sb, less than 0.05; As, 0.24; Bi, less than 0.025; Co, 0.019; Au, less than 0.01; Cd, less than 0.001
J. Riederer
Chemical Composition: XRF data from Tracer
Alloy: Bronze
Alloying Elements: copper, tin
Other Elements: lead, iron, silver, arsenic
K. Eremin, January 2014
Chemical Composition: EMP analysis from sample, Bronze:
Cu, 91.48; Sn, 6.71; Pb, 0.07; Zn, 0.00; Fe, 0.06; Ni, 0.04; Ag, 0.02; Sb, 0.02; As, 0.12
T. Richardson, June 1999
Technical Observations: The patina is dark green with red visible in chipped areas. The duck has a crooked bill, which was probably already that way in the wax model. Minor casting flaws are visible in the duck’s head.
The duck-headed pins are lost-wax casts; casting flaws are visible in some areas. On 167.1972, a raised seam surrounds the duck’s body. The seam is uneven and not always straight, suggesting that it is not the result of casting the bronze in a two-part mold but instead that the wax model was mold-made. The linear decoration on the shafts was incised in the wax model.
Tracy Richardson (submitted 1999)