Thread: Artillery Paralleloscope Prism Identification
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  #6  
Old 21-05-15, 02:17
David Dunlop David Dunlop is offline
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Join Date: Feb 2006
Location: Winnipeg, MB, Canada
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Found this website today. Quite a detailed explanation of how these things were used. Maybe it will be of some help.


http://nigelef.tripod.com/fc_laying.htm


David
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