Adjustable Pitch Prop

I found an aluminum adjustable pitch prop in the bottom of an old boat I recently purchased along with a 1963 Johnson 40 HP. I assume that it was once used on this same motor It has a half dime-sized nick out of one of the blades but it should be repairable. I'm not familiar with this type of prop and I haven't been able to find anything helpful on the net. It is stamped as "Omni-Pitch" and has an adjustment range from 7 to 15. Pics are attached showing the ID and the range of adjustment. If anyone can tell me anything about this equipment and whether it would be worth repairing I would greatly appreciate it.

I might have some one who can help Bob Merrian 813-464-8876 - owner of Torque Shift Prop He's had self shifting props for years, I don't now him personaly, but talk to him via phone about torque shift prop repairs and parts.

Found 1 for sale in Grand Rapids MI posted 10-23-2011 $75.00

Marty Brown said:

I might have some one who can help Bob Merrian 813-464-8876 - owner of Torque Shift Prop He's had self shifting props for years, I don't now him personaly, but talk to him via phone about torque shift prop repairs and parts.

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Thanks. I'll give him a call. I really want to see if it's worth repairing.

Ayuh,... That ain't a Torque Shift prop,...
but,..
It is kinda interestin' lookin'...

If it works, you could just run it...
I donno if there's any market for it though,...
It's more of a curiosity, than a runner, as you'll never find any parts for it...