While Porsche began designing tractors in the early 1930s, and produced them under a licensing agreements with Allgaier GmbH and the Austrian company Hofherr Schrantz, they didn't begin manufacturing on their own until 1956. Then, between 1956 and 1963 over 125,000 Porsche-Diesel tractors were built. However, only a small number of these, maybe …
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