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    Re: Question about horizon mirror unsilvered half
    From: Chuck Varney
    Date: 2024 Jul 11, 14:08 -0700

    Joe Wong,

    You asked: “
    So what would be the logical explanation as to why certain sextant models decided to retain the unsilvered half even though it does not seem to benefit anything (like the box sextant)?

    See the attachment, excerpted from a 1937 Heath & Company brochure, for the 'logical explanation' you seek.

    (Bill Morris also addressed the issue in his book, “The Nautical Sextant”, on page 105.)

    Chuck V.

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