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| Date: | 1936 |
|---|---|
| Description: | Cover of a brochure for McCormick-Deering T-20 and TA-40 TracTracTors (crawler tractors), "For Heavy loads — For Steep Slopes — For Soft Soils." |
| Date: | 1940 |
|---|---|
| Description: | Cover of an advertising brochure for International TD-9 Diesel TracTracTors (crawler tractors), featuring photographs of TD-9 crawler tractors in an agricu... |
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