Scale ca. 1:600. volume 2 covers east of the Rock River. Volume I, sheets 1-107. -- Volume II, sheets 151-250. Volume 1 provides coverage west of the Rock River Symbol key appears on index maps. Fire insurance map hand colored to show building construction, locations of windows and doors, elevators, and available water facilities. Both volumes include: Map of congested district of Rockford, Ill., 1913. Scale [1:2,400]. 200 ft. to an inch. Both volumes include title page, index sheet, and index map sheet. Also shows factories, commercial occupancy of buildings, property boundaries and house and block numbers. 209 maps in 2 volumes, colored 65 x 55 cm