Can any one identify this propeller?

[Flyboy45]

I appreciate any help identifying this beautiful propeller.

Here are the specs to go along with the photos:

Eight 3/8" diameter bolt holes
2 3/4" center bore
5 3/4" bolt circle diameter
3 1/2" hub thickness
8' 4" length
No company logo anywhere

Thanks!

[Dbahnson]

That might be hard to identify. The "X" in the design number often refers to "experimental" and often isn't referenced anywhere. It does look as if it's been refinished, however, which might explain the absence of manufacturer's decals.

[msprior01]

HI Flyboy, Your propeller was made by Hamilton Aero ( "H") of Milwaukee, WI and I would guess the age to be 1920-1929. The bolt pattern should match the OX-5 engine (used on a variety of aircraft). The additional small holes around the hub area were for a wood hub flange that has been removed. It has certainly been refinished, but is still a beautiful propeller.
Hope this helps.
Scott

[Flyboy45]

Thank you!

Thank you, Scott. How does one go about determining the value for such a propeller?

[Flyboy45]

Thank you!