Found in attic of our new house - please help identify

[Mcaulayhaney]

Hello! I know nothing about aviation or propellers, but we found this interesting propeller in our attic today and did a bunch of googling/research on line and couldn’t find anything at all about the manufacturer or the type of prop. I’d love some help! It’s in really good shape and probably has a cool story behind it. It has markings on it that says it is 54x26 and also 715AP. The logo says “Experimental Aqua-Prop, The Steel-Edged Propeller. PoBox 406 Tavernier Fl 33070”. It has 6 holes. Thanks for your help!

[Dbahnson]

Realistically, the only way you might find anything about it is to contact the company. It's not a certificated propeller so it won't show up on any of our database listings.