How John Deere's Small Tractors Replaced the Horse

Making the move from horse power to horsepower on America's small farms using small tractors.

A 1939 Ford-Ferguson 9N. More than 10,000 9Ns were sold in the final three months of 1939, the first year of production. Almost 100,000 had been sold by the time the model was phased out in early 1942.
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