Sanborn Map CompanyScale 1:600. 50 ft. to 1 in.Sheet 1 includes symbol key, index, and index map.Partial cadastral map.Also shows factories, commercial occupancy of buildings, property boundaries and house and block numbers. Fire insurance map hand colored to show building construction, locations of windows and doors, elevators, and available water facilities.7 maps, colored65 x 55 cmJPEGoai:digital.library.illinois.edu:af4354c0-c451-0133-1d17-0050569601ca-51623608engSanborn-Perris Map Co.8888-002PublicMt. Vernon, Jefferson Co., Ill., Oct. 1897MapsIllinois--Mount VernonIllinois1897University of Illinois Urbana-Champaign