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    Sextant certificates
    From: Alexandre Eremenko
    Date: 2006 May 4, 12:38 -0500



    Here are two certificates issued in the same year
    on the same sextant, one by C. Plath, another
    by Kelvin and Hughes.
    http://www.math.purdue.edu/~eremenko/cert1.jpg
    http://www.math.purdue.edu/~eremenko/cert2.jpg
    I don't know what was the story behind this,
    and why did the owner do this. (Maybe he dropped
    his sextant on the floor in fall 1955:-)

    I also have two certificates on my SNO, issued
    with 1 month interval, one by Freiberger,
    another by C+P, and I guarantee that I did not
    drop my sextant on the floor in between:-)
    and did not sail with it.
    What C+P certificate says you can guess,
    and Freiberger shows max arc error 0.2'.
    I also have quite strong evidence (from my own star observations)
    that both my certificates are a balooney.

    Alex



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