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<p>[QUOTE=&quot;springfld.arsenal, post: 113509, member: 54&quot;]No auction, I like this thing and I think it is in the permanent collection-let the heirs figure out what to do with it.&nbsp; Anyway I&#039;m still not 100 percent sure exactly how it was used and probably won&#039;t be until I find an original technical manual or official handbook for it.</p><p><br /></p><p>After reading this nice compact summary of navigation instruments I think it is possible that the thing is a modern version of the ancient Arabic &quot;kamal&quot; but who knows, investigation goes on.</p><p><br /></p><p><a href="http://www.mat.uc.pt/~helios/Mestre/Novemb00/H61iflan.htm" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.mat.uc.pt/~helios/Mestre/Novemb00/H61iflan.htm" rel="nofollow">http://www.mat.uc.pt/~helios/Mestre/Novemb00/H61iflan.htm</a>[/QUOTE]</p><p><br /></p>

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