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Art Deco Niello Tiffany & Co pocket watch with original box

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Art Deco Niello Tiffany & Co pocket watch with original box by Longines.

A brief article on niello:

Dating from around the 11th century, niello is blackening technique produced as an alloy of sulfur with copper, silver and lead. Once produced, it is used to fill designs that have been engraved into the surface of a metal. Usually done to silver, once applied to the metal and heated, the result is a black colouring that runs into the engraved channels. The excess niello is then removed by scraping until the filled channels are clearly visible, and finally the surface is polished. The contrast of the black niello against the bright silver surface produces an attractive decorative effect. Regaining popularity during the Art Deco period of the 1920’s to the 1940’s, niello jewellery has a look that although first appearances will lead people to think it is enamel, it does have its own unique texture and feel.


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