My long term goal is to refit it with the correct internals. My friend has another G&B with that foot pedal but it is not the "parlor" version with the connector in the center, but the standard treadle with the connector on the right side. I am considering taking a mold from her footpedal, modify it for the Parlor version and having a local foundry cast a couple...
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I can probably fab up a pretty close approximation of the cross bar, but the drive wheel is going to have to be found...
NOTE: If anyone ever sees a set of internals like that PLEASE let me know, I'd be VERY interested.