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| Date: | 11 30 1937 |
|---|---|
| Description: | Road construction workers using an International TD-40 TracTracTor (crawler tractor) and an Adams Model 4 grader owned by the City of Signal Hill. |
| Date: | 1924 |
|---|---|
| Description: | Two men use a 15-30(?) tractor and a grader on a dirt road. In the background are numerous oil derricks and industrial buildings. |
| Date: | 1949 |
|---|---|
| Description: | Three men are working outdoors. Subject: "Oil Drilling — TD-9." Where Taken: "NE." Information with photograph reads: "TD-9 owned by South Bend Oil Co., Br... |
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