Scanning electron microscopy and energy dispersive x-ray spectrometry (SEM-EDXRS) have been employed along with the light microscope to describe some metal threads made of proteinaceous substrates taken from museum textile collections. The textiles are said to originate in central Asia, western Asia, and Syria or Egypt, 13th-15th century AD. This study extends the set of data obtained in an earlier study of threads from the same time period. A general methodology for the examination of these types of metal threads is proposed.