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The John Deere model GP was built in five distinct versions through the course of its production: 1  The standard-front GP, or John Deere Standard, built from March 1928 to February 1935. 2  The John Deere two-wheel tricycle-front GP, or GP-tricycle, of which twenty-three units were built between August 1928 and April 1929.
The History. Though John Deere fashioned his first polished-steel plow in Grand Detour, Illinois, in 1837, the evolution of his company took years and remained a small operation for quite some time. By the time he had employed 16 people, the operation was without a name and a logo.