flottorp

[mary]

I have a flottorp marked made in grand rapid michigan .Design 7845-47 hp 100. Both blades alike 78 inches long max rmp 12375 6 sm holes, outer 4inch diam. inner measures 2 3/4 diam. I believe brass metal on outside of blade.Does anyone know anything about this and how much this could be worth. Thanks mary

[Dave]

There were several different 7845 - 47 models, and I'm not sure which one yours is. See this page for listings.

It's impossible to know value without knowing condition, but you can check eBay for similar props and I think you'll find a range between $200 to $800, highly dependent on condition.