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: | Sign along STH 19 near Watertown advertising the community's free tourist camp. One of the many problems associated with automobile travel during the earl... |
Date: | 1925 |
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Description: | Wisconsin State Highway sign along STH 11 near Galesville, one of a whole new vocabulary of signage created for automobile traffic. The inverted triangle w... |
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