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Old 01-11-2017, 10:04 AM   #2
Dbahnson
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They're usually pretty hard to identify with much specificity, but it certainly sounds like a typical " target drone" propeller used in the 1940s and 1950s. There were thousands of these sold off as surplus later on.

A picture might help, but I don't know of any reference to that design number, which might even just be a serial number.
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