John Deere: Model D

Please note; this is a sub-section of John Deere
The John Deere model D was produced from March 1, 1923 to July 3, 1953, the longest production span of all the two-cylinder John Deere tractors.
Despite a rather severe economic depression at the time, John Deere decided to build a Model D prototype in 1923, designed by Muir L. Frey (father of Ford Mustang designer Donald N. Frey).
The first model D rode on steel wheels with a 6.5×7.0 inch (later 6.75 × 7.0 inch) two-cylinder hand-cranked engine. It was not however the first tractor to bear the John Deere name - as a number of Deere experimental tractors, and the John Deere Dain "All Wheel Drive" tractor (of which approximately 100 were produced during 1918 through 1919) had all carried the Deere name before the D. [1]
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