These two illustrations of thresher teeth come from a 1903 catalog of the National Supply Co. of Cleveland, Ohio. The firm claimed to furnish teeth to fit any make of machine and guaranteed a perfect fit. Prices were: Ordinary teeth (under 100) 6 cents each; 100 or more, 5 cents each. Large Jumbo or other large makes, 100 or more, 8 cents each. 'Dexter' patent shoulder teeth, 9 cents each.