McCormick's reaper, 1831.
© Science Museum / Science & Society Picture Library
Model (scale 1:6) of the original reaping machine built and demonstrated in 1831 by Cyrus H McCormick. The model is one of a number displayed at the Paris Exposition Universelle in 1900 by the McCormick Harvesting Machine Co. It represents Cyrus McCormick's first machine as demonstrated at Steele's Farm, Virginia in the United States in July 1831. Between 1831 and 1839, some improvements were made until, in 1840, the first McCormick reapers were made available for purchase. The 1831 machine represents the beginnings of the first commercially succesful reaper.