Chemical Composition: ICP-MS/AAA data from sample, Leaded Brass:
Cu, 76.25; Sn, 0.61; Pb, 10.48; Zn, 12.18; Fe, 0.37; Ni, 0.05; Ag, 0.05; Sb, less than 0.05; 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
Technical Observations: The patina is pale green with some brown corrosion. The object is intact, although there is a crack in the pin.
The body of the fibula was cast, probably by the lost-wax process, with the surface designs created in the wax model, while the pin was made separately by hammering. The central knob was cast separately and joined mechanically. The flat end of the pin is held in the body of the fibula by a thin rod, which seems to have been inserted in one end of the crossbar. This interior pin may have been iron, as there are iron corrosion products visible, but it is no longer magnetic. The clasp was hammered over slightly. The surface shows rough finishing marks.
Carol Snow (submitted 2002)