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Old 11-29-2019, 07:05 PM   #2
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Join Date: Nov 2008
Posts: 1,203

It's considerably later than WW1 and may not relate to any war as such. It's a variable pitch (two adjustable blades attached to a metal hub) but that doesn't provide a specific date. Your best bet is to try to contact Monte Chase at Please post back here if you get any more information.
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