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Niello. Niello / niːˈɛloʊ / [1][2] is a black mixture, usually of sulphur, copper, silver, and lead, [3] used as an inlay on engraved or etched metal, especially silver. It is added as a powder or paste, then fired until it melts or at least softens, and flows or is pushed into the engraved lines in the metal.
Chasing (French: ciselure) or embossing is a similar technique in which the piece is hammered on the front side, sinking the metal. The two techniques are often used in conjunction. Many metals can be used for chasing and repoussé work, including gold, silver, copper, and alloys such as steel, bronze, and pewter.
Sir John Barton also invented a floating compass. Sir John Barton served as deputy comptroller of the Royal Mint in the early part of the nineteenth century and later as Treasurer to Queen Adelaide. He died at Windsor on 25 August 1834. After his death, his wife Ann gave John Harrison 's last pendulum clock to the Royal Astronomical Society .
The result is a metal of a rich golden brown colour, capable of being worked by casting — a process little applicable to its component parts, but peculiarly successful with bronze, the density and hardness of the metal allowing it to take any impression of a mould, however delicate. It is thus possible to create ornamental work of various kinds.
Ancient engraved gems were often reused among stones, which in early medieval jewelled objects were often set profusely, spaced out across surfaces, mixed with ornaments in gold. Medieval gem engraving only recaptured the full skills of classical gem engravers at the end of the period, but simpler inscriptions and motifs were sometimes added ...
Shell gorget. Shell gorgets are a Native American art form of polished, carved shell pendants worn around the neck. The gorgets are frequently engraved, and are sometimes highlighted with pigments, or fenestrated (pierced with openings). Shell gorgets were most common in Eastern Woodlands of the United States, during the Hopewell tradition (200 ...
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