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A tractor disk is used to cover potatoes which had not been planted to sufficient depth. This practice is not generally necessary as adjustments were later made on the planting machines.<lb/> Photographer: Stewart, Francis<lb/> Newell, California.
[recto] A tractor disk is used to cover potatoes which had not been planted to sufficient depth. This practice is not generally necessary as adjustments were later made on the planting machines. ;  Photographer: Stewart, Francis ;  Newell, California.
[verso] A tractor disk is used to cover potatoes which had not been planted to sufficient depth. This practice is not generally necessary as adjustments were later made on the planting machines. ;  Photographer: Stewart, Francis ;  Newell, California.
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