What do I have?

[Beach707]

My father left me a wooden Hartzell Piqua, Ohio propeller design #548 SR# 13361. How can I find out any history on the Propeller. My father used it in Williamson , West Virginia probably in the 40's.
Any assistance will be appreciated.
Thanks, John

[Dave]

http://www.modernwoodenpropellers.com/hartzell.htm

It would be extremely unlikely to find any specific history about it anywhere. The best you usually do is associate it with several aircraft types.