Learn More about the Half Century of Progress Show @ http://www.halfcenturyofprogress.com

The Half Century of Progress Show features 200 acres of harvesting and plowing. In this video we look at 40 of the tractors that have taken part in the plowing demonstration including International Harvester, John Deere, Oliver, MinneapolisMoline, Caterpillar, Ford, Steiger and AllisChalmers.

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