Boasting mint-condition restoration, Donald Sell's Hart Parr 40 will be featured at its first antique show near Perryton, Texas, on September 21 and 22. Photo by Sandy Woods.
Restored cast iron crankcase sits ready for re-assembly after Wichita-based machinist Jerry Abplanalp finished his work.
The Hart Parr 40 as it was found decades ago resting in a field junk pile near Glendive, Montana.
According to restoration machinist Clyde Hall, reconstructing the above belt pulley and reverse planetary gear was one of his most difficult tasks. The intricacies of his work show in this closeup of the gear, now in full restoration condition. Photo by S
One of the Hart Parr 40's most distinguishable characteristics was its short design for sharp turning, as shown by the vertical placement of the cylinder. Photo by Sandy Woods.