"Base map from U.S. Geological Survey state map." "Data corrected to May 1, 1940." Imprint: [Washington, D.C.?] : The Administration, [1940] Scale: 1:500,000; Dimensions: 92 x 70 cm, sheets 55 x 79 cm Coordinates: W0880700 W0844500 N0414500 N0375200