Help with ID Please

Hub thickness is 6". Thanks for your help, we appreciate it.

Kendra

[Dave]

It's a Paragon Propeller ("PP") for a Curtiss H16 flying boat used in the late teens and early twenties. It may or may not be 1/2 of a 4 blade combination, depending on the hub thickness.

This propeller was left by the previous owners of our house. We're just curious as to what's been hanging on our wall for 20 years.

90X 500
PP 108 RH (the 8 may be a 3)
TYPE H16
307

I believe the engine was a Liberty 12.

Any help would be appreciated. Thanks
Kendra