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Filter: Subject of Work
Filter: Subject of agricultural machinery
Filter: Subject of forests and forestry
| Date: | 1938 |
|---|---|
| Description: | A man uses an International T-20 TracTracTor (crawler tractor) and PD-40 owned by Andrew Hedstrom to log, saw, and finish work on the Gun Flint Trail. The ... |
| Date: | 1931 |
|---|---|
| Description: | Men use a McCormick-Deering 15-30 tractor and a "reforestation machine" as they plant trees for timber production. |
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