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    Re: Bubble sextants on e-bay
    From: Alexandre Eremenko
    Date: 2007 Jan 01, 11:12 -0800

    Dear Robert,
    Thank you very much for a lot of useful info.
    > If you are looking for a bubble sextant, there are only two that I would
    > recommend without hesitation and in this order:
    > British MK IX A
    Do you have any experience with AN 5851-1 (a.k.a. A14) recommended
    by others? And its development A15 with variable-time averager?
    >  You should purchase it from a reputable
    > dealer who knows sextants and who has hopefully overhauled the unit you
    > intend to purchase.
    I have not seen an e-bay dealer yet who sold an air sextant without a
    that he does not know how to use it. My experience with e-bay so far
    your example with 10 coins falling heads.
    Of the 8 items I bought on e-bay so far, except books, 3 had hidden
    defects and 3 were
    badly damaged in the process of delivery (and I was never able to
    collect any insurance).
    > As for where to find them, there are several dealers out there. Two come to
    > mind: our own Ken Gebhart  and Robert E. White &Sons of Boston
    > Massachusetts.
    Robert White's web page does not seem to mention any air sextants.
    And I did not know that Ken sells any used equipment that is not
    listed in Celestaire catalog.
    Ken, how to find out what antique items you have for sale?
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