Cylindrical weight with traces of an iron suspension loop incorporated into the body and covered on the upper part by a thin layer of lead. The piece bears three mouldings located respectively at the upper section, the mid-body and the lower terminal.
63
Balance Weight
Origin
Castro de Alvarelhos, Alvarelhos, Trofa.
Material
Bronze. Optical microscopy observation – tin bronze alloy with 8% Sn and a high lead content of 6% Pb. Minor elements include Ag 0.05%, Fe 0.12% and Sb 0.2%. The microstructure shows lead globules within a typical biphasic bronze matrix. The presence of lead is also detected in the interior of the sample.
Description
Classification and chronology
Type …. / Castro de Alvarelhos - Phase IV/V
Dimensions
Maximum length: 51 mm; Maximum diameter: 32 mm; Weight: 269,5 gr.
Deposit
MMAP [ALV. 93A, op. 209]
Bibli.
MOREIRA 2010, 978, CCXIX, fot. n.º 25.
