Nobody can figure out what this is.

[Cherokeedigger]

 

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[flinthunter]

It drives the sickle bar on a sickle mower. There is a wood shaft that attaches to it and drives the sickle bar. I've broken and remade my share of wood shafts for these. IMG_1533.jpg Photo by smithrun | Photobucket

 

[Cherokeedigger]

How old do you think this is?

 

[flinthunter]

They are still being made. Judging by the rust and pitting and just being a guess, I would say somewhere between 40 and 90 years old.

 

[Cherokeedigger]

Thank you very much!