Chemical Composition: ICP-MS/AAA data from sample, Leaded Bronze:
Cu, 70.75; Sn, 7.35; Pb, 21.02; Zn, 0.422; Fe, 0.26; Ni, 0.03; Ag, 0.07; Sb, 0.1; As, less than 0.10; Bi, less than 0.025; Co, less than 0.01; Au, less than 0.01; Cd, less than 0.001
J. Riederer
Chemical Composition: XRF data from Tracer
Alloy: Leaded Bronze
Alloying Elements: copper, tin, lead
Other Elements: zinc, iron, silver, antimony
K. Eremin, January 2014
Technical Observations: These fibulae (1985.134, 1985.135, 1985.136.A, 1985.143, 1985.144, and 1985.145) are generally intact, and the patinas range from green to black.
Each fibula was made in three sections. First, a rod, with one rounded end and the other squarish or hammered flat, was used for the crossbar. Then a wire was coiled around the crossbar, starting in the middle and coiling to one end, at which point it was bent across the top of the fibula to the other end of the crossbar; this wire coiled back to the middle of the crossbar then extended out to become the pin. Finally, the top of the cast bow was hammered over the crossbar, which secured the wire that extends across the top of the fibula as well as the inner end of the coiled wire. The other end of the bow was hammered out to form the catchplate.
Carol Snow (submitted 2002)
