Join Date: Dec 2015
Location: Wittenberg, Wisconsin
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The model 40 was only a pull type. Some were made into a SP by universities for plot use. The JD 12/12A is an Allis Chalmers prototype 60 combine. It was a straight through design of the 60 all crop,but field performance didn't match the production 60. The prototype and all tooling were sold to John Deere.