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Old 08-14-2014, 07:35 PM   #11
Firemancg
 
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I won't, I understand the value of antiques and war memorabilia. And yes the ripples in the copper are caused by the prop being used, I was a aircraft mechanic in the Coast Guard and now am a mechanic on air boats. The deformities in on the following edge are caused from the use and force of the prop in the air. The friction (wind burn is also caused by flying) and if I am wrong and you are correct this prop has been mounted on a airplane it's entire life because there is no change on the prop where it was mounted to the motor or on the front where the hub was on it. But I have been wrong in the past! I am a dumby when it comes to wooden props, just stumbled across it in a second hand shop and made a wild offer on it and winded up leaving with it.
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Old 08-14-2014, 08:12 PM   #12
Dave
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I originally thought that this prop had not been used based on the absence of "witness marks" on the hub where it would have been compressed with the metal hub, but after looking more closely at the photo I think they are there (yellow arrows). A huge number of propellers surviving that era were never used, as they became obsolete with the rapid development of faster engines, and most were sold off out of storage as surplus in the early twenties.

Do you have a photo of the whole prop?
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Old 08-14-2014, 09:05 PM   #13
Firemancg
 
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I am not at the house right now but when I get home I will take a full length picture and a lot more. If you want to shoot me a email @ firemancg_2003@yahoo.com I will email them to you.

Meanwhile here is half a pic, it's the rougher half of the prop
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