Map of Babcock Plan for a trunk highway system in Minnesota
Cartographic Details: No scale given."Failure to vote on Amendment No. 1 is equivalent to voting against it.""Vote "yes" for constitutional amendment no. 1 on November 2, 1920."Includes text detailing the advantages of the plan.
78 x 62 centimeters
No scale given.
Minnesota Transportation Maps
McGill-Warner Co. and Minnesota Highway Improvement Association.
The Association : McGill-Warner Co. (St. Paul, Minnesota), 1919
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