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Filter: FORMAT_DIMENSIONS of 6.5 x 4.5 inches
Filter: Subject of engineering
| Date: | 1911 |
|---|---|
| Description: | Men use a "Big Four" gas tractor to pull a Buffalo-Pitts tractor out of a hole at the Winnipeg tractor contest in Canada. The "Big Four" tractor was built ... |
| Date: | 1911 |
|---|---|
| Description: | Men pose with a J.I. Case 20-40 tractor at the Winnipeg tractor contest in Canada. |
| Date: | 1915 |
|---|---|
| Description: | A man in a suit looks over an experimental motor cultivator while other men look on. |
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