Oliver Hart-Parr C.H. Wendel The complete encyclopedia and history of the Oliver & Hart-Parr tractor and farm equipment manufacturers. This first-ever study of these famous firms features over 1, photographs, each with captions that tell the story of individual models. Company histories are detailed in accompanying features that follow the changes, mergers and demise of the names tied to Oliver - names like Cockshutt and Nichols & Shepard. Hdbd., 8 1/2x 11 1/4, 296 pgs., 1,+ b&w ill.