Scale 1:600. 50 ft. to 1 in. title page, key map, street index, and congested district maps, scale 1:2,400, on 5 unnumbered sheets. Symbol key on key map sheet. Shows areas north and west of the Chicago River. Sheets numbered 1N-54N and 55W-111W Partial cadastral map. Originally issued as bound volume. Fire insurance map hand colored to show bulding construction, locations of windows and doors, and available water facilities. Also shows factories, commercial occupancy of buildings, property boundaries, and house and block numbers. 111 maps, colored 60 x 48 cm