Scale ca. 1:600 Symbol key on title leave with key map. Map leaves numbered 1-103; title, key map, and street index on 2 unnumbered leaves. Also shows factories, commercial occupancy of buildings, property boundaries, and house and block numbers. Covers towns in northern Cook County. Partial cadastral map. Fire insurance map colored to show building construction, location of windows and doors, and available water facilities. 1 atlas (103 leaves + 2 unnumbered leaves), colored 71 cm