Scale 1:600. 50 ft. to 1 in. Unnumbered sheet 1 includes symbol key, index, and index map. Partial cadastral map.Additional title on some sheets: North Chicago. Fire insurance map hand colored to show building construction, locations of windows and doors, elevators, and available water facilities. Also shows factories, commercial occupancy of buildings, property boundaries and house and block numbers. 29 maps, colored 64 x 54 cm