Keywords: Summit County 450.svg Summit County Ohio as seen at http //www gribblenation net/ohio/countysigns/summit htm Based on File US DOT FHWA MUTCD SHS 2004 3-7 M1-6 450x450mm 000 svg 2014-01-19 23 37 39 own Minh Nguyen cc-zero Uploaded with UploadWizard Diagrams of county route markers with county name 0450 450 number Diagrams of route markers of Summit County Ohio |