The Oldest Tractor? Hart-Parr 22-45

Hart-Parr 22-45 owner marks the centennial of what may be the oldest purpose-built tractor in the U.S.

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Though this Hart-Parr has unusual spokes similar to those on Jerry Swedberg's 1906 Hart-Parr 22-45, and is working in a field in North Dakota, it is probably not the same exact tractor, as the gas tank is different and it appears the radiator is longer, suggesting it was a Hart-Parr 30-60 of the same era. Note the homemade seat, crafted of pieces of wood nailed together.