Original John Deere Letter Series Tractors, 1923-1954

belt horsepower bore and stroke brake horsepower changed to GPP collectors Company Archives crankshaft crop clearance Deere & Company Deere decided Deere introduced DEERE JOHN DEERE Deere produced DEERE The Model Deere's line drawbar horsepower duction early-styled exhaust stack Farmall featured fenders flywheel front axle front end front pedestal front wheels gear general-purpose GP Tricycle GP Wide Tread GPWT Henry Dreyfuss hood hydraulic JOHN DEERE JOHN John Deere Model John Deere tractors late-styled Model letter-series tractors Lindeman crawlers maximum load miles per hour Model 62 Model B Series Model BN Model D Model H option rear axles rear tires rear tread rear wheels rear-axle housings rebuilt regular production row-crop Model row-crop tractor rubber tires scrapped Serial Number Registers serial-number run Series tractors standard equipment standard-tread steel wheels steering styled Model tors trac tractor models transmission tread width units unstyled Model variations Waterloo Boy Model