tag:digital.library.illinois.edu,2005:/itemsItems2023-12-12T22:39:51Ztag:digital.library.illinois.edu,2005:Item/300982016-08-03T21:14:41Z2023-12-12T22:39:51ZBenton, Franklin Co., Ill., July 1900Sheet 1 includes symbol key, index, and index map.University of Illinois at Urbana-Champaign Library