John Deere 6210r Tractor
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John Deere 8430 Tractor Ploughing
Ian Gowland/science Photo Library
Wheat Harvest #1
Jim West
John Deere Vintage Tractor
Photostock-israel/science Photo Library
John Deere 6920 Tractor
Ian Gowland/science Photo Library
Combine Harvester
Photostock-israel/science Photo Library
Corn Picker In A Field
Photostock-israel/science Photo Library
Corn Picker In A Field #1
Photostock-israel/science Photo Library
Corn Harvest #9
Jim West/science Photo Library
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Corn Harvest #15
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Jim West/science Photo Library
Corn Harvest #18
Jim West/science Photo Library