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Filter: FULL_DATE of 1949
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| Date: | 1949 |
|---|---|
| Description: | Worker leveling gravel with a McCormick-Deering Farmall M tractor and a no. 7 angle dozer at International Harvester's Hinsdale farm and testing facility. |
| Date: | 1949 |
|---|---|
| Description: | A man stands over a device, which he is inspecting. Caption reads: "Madison, Wis. 1949(?). Prof. Oliver P. Watts, retired distinguished authority on the co... |
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