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Thanks Paul for confiming our Navy versions.
Joel
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-------------- Original message from Paul Hirose <cfuhb-acdgw at EARTHLINK dot NET>: --------------
> > I came across this by chance while prowling the Internet. "The
> > Battenberg Course Indicator was invented in 1892 by Captain H. S. H.
> > Prince Louis of Battenberg, G.C.B., afterwards Admiral-of-the-Fleet The
>
> At that same site there's a short bio on the inventor, Battenberg. He
> was Austrian by birth, which didn't prevent him from having a highly
> distinguished career in the Royal Navy. That is, until the outbreak of
> war in 1914. Later he took the surname Mountbatten.
>
> http://www.gwpda.org/bio/b/batnburg.html
>
> Getting back to the device itself, I found that The National Maritime
> Museum in London has one:
> http://www.portcities.org.uk/london/server/show/conMediaFile.6192/Battenbergs-co
> urse-indicator-Mark-III.html
>
> So does the Smithsonian:
> http://americanhistory.si.edu/collections/navigation/object.cfm?recordnumber=108
> 7634
>
> According to that page, list member Peter Ifland did a writeup on the
> Course Indicator in Navigation News back in 2000.
>
> Here's one for sale, price 475 Euros. Either this one is a different
> variant, or there's a lot of stuff missing.
> http://www.regiozeist.nl/eng_scheeps_instrumenten.htm