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

1925. 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. Minnesota trunk highways improvement progress map, February 1, 1925

1925. Minnesota. Highway Department. Scale not given. "Biennial Report of Commissioner of Highways. Insert at end of book"--Lower margin.