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1. Condition map of Minnesota Trunk Highways: a 7,000 mile primary system showing national and state markings

1924. Minnesota. Department of Highways. Scale approximately 1:1,530,000. Description based on: 1932 sheet. Each sheet lists the Commissioner of highways and the Chief Engineer. On verso: ...

2. Condition map of Minnesota Trunk Highways: a 7,000 mile primary system showing national and state markings

1924. Minnesota. Department of Highways. Scale approximately 1:1,530,000. Description based on: 1932 sheet. Each sheet lists the Commissioner of highways and the Chief Engineer. On verso: ...

3. Minnesota

1924. Geological Survey and United States. Bureau of Public Roads. Scale approximately 1:1,710,720. 1 in = 27 miles (W 97°--W 91°/N 49°--N 45°). From the Bureau's Federal aid highway system, page 13. "System as app...