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I have a 9-foot historic wooden biplane propeller with brass edges. It does have a serial number, but it is tough to read. 2250 DN 152 6' 6" is what it appears to say. I am attaching a photo of it. Does anyone know what model it may have come from / how to find out which one?

enter image description here

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    $\begingroup$ Can you take a picture of the serial number? Provide exact measurements of the blades? $\endgroup$ – Ron Beyer Sep 12 '19 at 18:37
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    $\begingroup$ I'll go out on a limb and guess that the propeller is 6 feet, 6 inches long. $\endgroup$ – rclocher3 Sep 12 '19 at 20:44

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