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Thread: Braille micrometer for blind machinists - photos

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  1. Dec 1, 2018, 10:23 AM #1
    Jon
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    Braille micrometer for blind machinists - photos

    Braille micrometer for blind machinists.

    Braille micrometer, graduated for finger tip reading in 1/1000ths of an inch, steel, British Patent No.595016, made by Moore & Wright, Sheffield, England, 1945-1949






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