Drawn by A. P. Melton, City Engr. Gary Jan '07. Shows the area from Chicago Harbor east to Michigan City, Indiana and south to Crown Point, Indiana., Imprint: [Hammond, Ind.?] : [A.F. Knotts?], [1907], Dimensions: 33 x 40 cm; Scale: 1:170,000, Coordinates: W0874044 W0865058 N0415336 N0412348