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    Re: Ball Recording Sextant Mark 1 Mod. 0
    From: Robert Eno
    Date: 2008 Mar 19, 19:55 -0400

    I have a Ball Recording Sextant in mint condition. And I have the manual
    which I will scan in sometime this week and send it to you in a PM. It will
    likely be quite a large file so if it is not e-mailable, I may have to burn
    a CD and snail mail it to you.
    The purpose of the scale is explained in the manual as well as the theory of
    operation and use.
    You can use ordinary carbon paper in lieu of having whatever was originally
    provided. And the manual is very polite with respect to where you insert the
    carbon paper ;-)
    Give me a day or so and I will shoot this stuff over your way.
    By the way, these birds are rare. I believe that only a hundred or less were
    made. I have the actual figure somewhere but cannot lay my hands on it. The
    sextant is discussed in Ifland's "Taking the Stars". As you might guess,
    they did not work out as originally anticipated.
    ----- Original Message -----
    From: "rob" 
    To: "NavList" 
    Sent: Wednesday, March 19, 2008 1:46 PM
    Subject: [NavList 4725] Ball Recording Sextant Mark 1 Mod. 0
    > I have just obtained one from EBay, but it needs a bit of work. does
    > anyone on the list have:
    > 1) a manual for one?
    > 2) one in working or original condition?
    > 3) a good idea of how they work and is willing to offer some clues?
    > The major conundrums I face are:
    > 1) It seems to need some carbon paper or similar material, and I am
    > not quite sure what to use or where to insert it (please be polite on
    > replies to that one).
    > 2) it appears a previous owner dismantled and reassembled the scopes,
    > and I am not certain they are reassembled right. What recticules go on
    > which scope?
    > 3) There is a scale on the bottom of the ball chamber, and I am not
    > certain how to use/read it.
    > Thanks in advance
    > Rob
    > >
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