Wooden prop

[DAAB]

I've recently became the "caretaker" of an old 36" radius wooden prop.
The only identification I can make out are a series of number on the back side of the hub. They are not all that clear
55353, or 35353 or possibly 65353?
The front of the prop has two older decals that say "US ARMY" on one side and "keep 'em flying" on the only side. The leading edges and tips are metal.
Can anyone help me identify this prop

[Dave]

It sounds like it may be a drone prop, as it's too small for a certificated aircraft.