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  2. Engraving - Wikipedia

    en.wikipedia.org/wiki/Engraving

    Other terms often used for printed engravings are copper engraving, copper-plate engraving or line engraving. Steel engraving is the same technique, on steel or steel-faced plates, and was mostly used for banknotes, illustrations for books, magazines and reproductive prints, letterheads and similar uses from about 1790 to the early 20th century, when the technique became less popular, except ...

  3. Laser engraving - Wikipedia

    en.wikipedia.org/wiki/Laser_engraving

    Sub-surface laser engraving is the process of engraving an image in a transparent solid material by focusing a laser below the surface to create small fractures. Such engraved materials are of high-grade optical quality (suitable for lenses, with low dispersion) to minimize distortion of the beam. BK7 glass is a common material for this ...

  4. Steel engraving - Wikipedia

    en.wikipedia.org/wiki/Steel_engraving

    The most reliable way of distinguishing between unfaced copper engraving and steel or steel-faced engraving is the "lightness and delicacy of the pale lines" in the latter. The hardness of the plate surface made it possible to print a good number of impressions without the metal of the plate wearing the lines out under the pressure of repeated ...

  5. Keychain - Wikipedia

    en.wikipedia.org/wiki/Keychain

    A keychain (/ ˈ k i t ʃ eɪ n / ⓘ) (also keyring) is a small ring or chain of metal to which several keys, or fobs can be attached. The terms keyring & keychain are often used interchangeably to mean both the individual ring, or a combined unit of a ring and fob.

  6. Art and engraving on United States banknotes - Wikipedia

    en.wikipedia.org/wiki/Art_and_engraving_on...

    David Rittenhouse engraved some border designs for the 10 May 1775 Continental currency [14] and 25 March 1776 Colony of New Jersey 6£ note. [15] Francis Hopkinson does not appear to have done engraving, but he is credited with the designs for border-cuts, emblems, and mottos on three issues of Continental currency in 1778–1779. [16]

  7. Engraved glass - Wikipedia

    en.wikipedia.org/wiki/Engraved_glass

    Beaker with soldier and civilian shaking hands, Bohemian glass, later 19th century. Engraved glass is a type of decorated glass that involves shallowly engraving the surface of a glass object, either by holding it against a rotating wheel, or manipulating a "diamond point" in the style of an engraving burin.

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