Keywords: Charlotte Route 4 shield.svg This design was first posted by the city of Charlotte North Carolina with no copyright notice in the late 1970s It does not appear that a copyright was registered so it was never copyrighted The logo is a http //www charmeck nc us/departments/city+manager/about+us/logo asp registered service mark though This specific SVG was created from Image US DOT FHWA MUTCD SHS 2004 3-7 M1-6 450x450mm 00 svg and the city's http //www charmeck org/MediaRoom/Crown+Logo+Guidelines htm Crown Logo Guidelines as stated above the logo is trademarked but not copyrighted PD-US trademark North Carolina Highway Shields Charlotte Route 4 4 number Diagrams of North Carolina city route markers |