Found five maps from the National Highway Assoc. They are lithoggraphs by the A.Hoen & Co Baltimore Md. These maps are proposed routes for interstate highways. Can't find anything like them on the www. They are; Theodore Roosevelt International Highway 52" x 18", Linchon Highway 45 1/2" x 15", National Park to Park Highway 30" x 21", Lee Highway 45" x 17 1/2", and National Roosevelt Midland Trail 43" x 16". All dated 1923.
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