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Filter: Categories of Wisconsin Historical Images
Filter: FULL_DATE of 1939
Filter: Subject of mines and mineral resources
| Date: | 1939 |
|---|---|
| Description: | International PA-100 power unit operating a Pomona water pump in a lead and zinc mine. A box labeled "dynamite" is in the foreground. |
| Date: | 1939 |
|---|---|
| Description: | A man standing near an International U-7 power unit used to operate a drum hoist which pulls cars up a 500 foot slope from a mine. |
| Date: | 1939 |
|---|---|
| Description: | View of a railroad track leading to the opening of a mine shaft. Logs or felled trees are lying on either side of the opening. |
| Date: | 1939 |
|---|---|
| Description: | A miner fastening a chain to a mining car in order to be pulled from the shaft by a drum hoist. The drum hoist was powered by an International U-7 power un... |
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