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    Re: Micrometer vernier
    From: Frank Reed
    Date: 2018 Apr 17, 11:00 -0700

    To avoid confusion, I'm not talking about historical sextants from a century ago which required a finely-engraved vernier for reading minutes from the sextant. I'm just talking about the small vernier next to the micrometer found on some modern sextants. Here's another image with this highlighted...

    Frank Reed

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