We've got an interesting model from John Deere. This 1951 Model G found a home in north central Illinois with a collector who loves to showcase his green. When this tractor was first designed, John Deere had earmarked it to be called the "F" model. Unfortunately Farmall already had an "F" model in production, so John Deere changed it to a G. Even so, the tractor parts all begin with the letter "F".