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A lovely old ivory ruler

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Office Antiques316 of 930National typewriter - 188919th C Gilt French Bronze Inkwell
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Posted 2 years ago

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Phatbuddha
(189 items)

A lovely old ivory ruler made in France. I'm not sure how old it is maybe 1930's it's still got the Leather case with a yellow Magnifying glass

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Comments

  1. TallCakes TallCakes, 2 years ago
    your slide rule is most likely pre-1970s, as the introduction of scientific calculators in the early 70s rendered these obsolete. Prior to the scientific calculator the slide rule was use as a mechanical calculator by engineers and scientist for complicated logarithmic calculations.
  2. trunkman trunkman, 2 years ago
    On another post of a slide ruler on this site is a reference to a website that tracks these instruments and has pertinent info on them. Cool piece...
  3. Phatbuddha Phatbuddha, 2 years ago
    Nice1 guys :)

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