Date: | 1947 |
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Description: | Two men standing at the rear of the Wisconsin Department of Agriculture dairy laboratory truck, which has wooden steps leading up to the open rear doors. |
Date: | |
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Description: | View across street through chain-link fence towards a van labeled: "Department of Natural Resources Air Monitoring Laboratory." Behind the van and across a... |
Date: | |
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Description: | A man is looking through a window towards another man in a cold lab testing a truck. Caption reads: "A parka-clad engineer braves thirty below zero tempera... |
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