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My first guess when seeing the set screw, was counterweight. Looks like it slips on to the end of a bar/shaft and is held in place with the set screw. Judging by the square head on the set screw, I'd say it's probably about 60+ years old and came off a tractor or some type of farm equipment. |
Thanks all...
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Holy crap, do you realize what this means?!?!?!? Somewhere on the internetz is an even bigger collection of geeks than GD.
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Good catch. |



