tag:digital.library.illinois.edu,2005:/items/c984ef10-c451-0133-1d17-0050569601ca-4Mason City, Mason County, Illinois, June 19092023-12-12T22:48:25Ztag:digital.library.illinois.edu,2005:Item/359102016-08-03T21:15:14Z2023-12-12T22:48:25ZMason City, Mason County, Illinois, June 1909Also shows factories, commercial occupancy of buildings, property boundaries and house and block numbers.University of Illinois at Urbana-Champaign Library