At a complete loss...

[FHAM]

This was given to us. Have no clue. Not like anything I've seen before. Any help or advice would be much appreciated. No manufacturer's info available. the prop is just a smidge over 8' at 97" Am attaching photos. Hopefully one of you have seen something like this before. Maybe it's homemade??? Maybe a boat prop???? The latter seems unlikely.

[Dbahnson]

It looks like a wind machine prop, often seen in vineyards and orchards. I have a few pictures that I can try to dig up that show the wooden version but a Google search turns up a lot of the newer metal versions.

[FHAM]

Thank you!