Agricultural Implements and Machines in the Collection of the National Museum of History and Technology / Smithsonian Studies in History and Technology, No. 17

by John T. Schlebecker

Disk(s), for plows and cultivators, [77], [185], [370]

Dobbs, John, [287], [338]

Dodge, Thomas H., [321]

Dodge and Washburn barbed wire, [321]

Dry farming, plow for, [370]

Drill, grain, [202]

Duplicator for farm records, [406]

Duval, Caleb Paul, [91]

Duval, Virginia, donor, [91]-[96]

Eagle plow, [54]