Date: | 1925 |
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Description: | Applying calcium chloride to the surface of STH 19 in Dane County. Unpaved roads stabilized with calcium chloride produced less dust, although that type o... |
Date: | 1925 |
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Description: | View of a road crew along State Highway 15 at work constructing a trench for a penetration type shoulder near Kaukauna. |
Date: | 1925 |
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Description: | A Kewaunee County road crew poses in front of gravel crushing machinery. |
Date: | 1925 |
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Description: | Bulletin advertising Pioneer tractors for construction and maintenance of highways. Features two photographs of men using the tractors; the caption beneath... |
Date: | 1925 |
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Description: | Front cover of a booklet advertising the 10-ton Caterpillar tractor. The photograph in the center depicts a man using the tractor with a road grader. |
Date: | 1925 |
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Description: | Mailing advertisement for the 5-ton Caterpillar tractor. The illustrations at top demonstrate (from left): "Pulling train of 3-1 1/4 yd. Scrapers", "Showin... |
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