French encyclopedia article on gold and silver thread, covering drawn precious-metal wire and silk threads wrapped with thin flattened gilt or silver strip. It describes the use of these threads in passementerie for military epaulettes, belts and braids, and the shift from pure silver or gilt copper cores to mixed silver-over-copper wire. It then reports M. Hélouis's improvement of 'mi-fin' by using nickel silver (maillechort) wire, and his coloring of metal strips with galvanic lead-peroxide deposits following Nobili and Becquerel. It also mentions the effect of foreign competition on Lyon manufacture.