At head of title: Cleartype. "Map no. 212.", Imprint: New York : American Map Co., [1931?], Scale: 1:2,000,000; Dimensions: 25 x 19 cm, Coordinates: W0880700 W0844500 N0414500 N0375200
American Map Company (New York, N.Y.) (1931). County outline map of Indiana. American Map Company (New York, N.Y.). https://purl.dlib.indiana.edu/iudl/images/VAC3073/VAC3073-M-00175 (map)