Identify old US Propellers Inv Wooden Prop

[ch47dr]

I have found an old US Propellers wooden prop and need help identifing it to see if it was used on an actual airplane or a drone. It does not have the typical red tips for a drone aircraft.

76" long
6 bolt holes
7" Black fabric tips
24" Tip and leading edge metal sheath

Markings stamped on hub
1- stamped on blade root

On front side of hub
3359
52

on back side of hub
DES-5726
SER-3359
RPI-2300
HP-65
TC-752

[Dave]

Although I don't have a specific listing for its usage, it does look like a fairly typical example of a propeller for something like a 65 hp Continental or similar engine, which powered a wide range of trainers, like the Piper Cub and many others.

[ch47dr]

Great, Thanks. How old would you estimate this prop might be. I know for a fact that it has been in storage in a garage for at least 45 years. Could it be pre WWII or Post.

Thanks
Dave H.

[Dave]

I'd be guessing late thirties or early forties. I'm not sure about the history of U.S. Propellers, though, and when they may have gone out of business.