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- The Disk Harrow Machine.
- KEYSTONE TILLAGE IMPLEMENTS.
- A vintage farm equipment machine shop manufacturing history project.
- KEYSTONE TILLAGE IMPLEMENTS
- An International Harvester Company Machine Shop Manufacturing History Project.
- THE CENTURY OF THE REAPER. 1831-1931.
- An International Harvester Company Machine Shop Manufacturing History Project.
- An International Harvester Company Machine Shop Manufacturing History Project.
- An International Harvester Company Machine Shop Manufacturing History Project.