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    Re: Sextant stands; was Lunar Distances: Graphic Methods
    From: Henry Halboth
    Date: 2004 Apr 24, 23:06 -0400

    I'm really not certain, but my reading would tend to indicate these
    stands to be custom made.
    On Sat, 24 Apr 2004 21:02:10 -0300 Jim Thompson 
    > The same thought struck me today -- I ran across mention of those
    > devices
    > for the first time while doing some google research on sextant
    > mirror
    > construction.  I had never known about them before.  I then
    > researched
    > sextant stands, but found only historical references, so it appears
    > that
    > perhaps nobody is marketing them any longer:
    > http://45.1911encyclopedia.org/S/SE/SEXTANT.htm
    > http://www.westsea.com/tsg3/octlocker/octcapchart13.html
    > http://www.nla.gov.au/ntwkpubs/gw/47/p22a01.html
    > http://www.mat.uc.pt/~helios/Mestre/Novemb00/H61if_2.htm
    > Jim Thompson
    > jim2@jimthompson.net
    > www.jimthompson.net
    > Outgoing mail scanned by Norton Antivirus
    > -----------------------------------------
    > > -----Original Message-----
    > > From: Henry C. Halboth
    > > I might note, in this regard, that there does not seem to have
    > been any
    > > recent mention of the use of a sextant stand in taking shoreside
    > > artificial horizon altitudes, as was done by the hydrographical
    > surveyors
    > > in establishing positions - the sextant stand is pretty well
    > covered in
    > > "Hydrographical Surveying", by Wharton & Field, 1920 Edition, and
    > might
    > > be of interest to those using the artificial horizon. This is
    > pretty much
    > > the standard work, and might be useful to those seeking more
    > theoretical
    > > accuracy than sometimes sought in practical navigation...

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