DescriptionUS 275 Iowa 1948.svg 16x16 U.S. route shield, approximated to the 1948 standards. Date 19 November 2010 Source Based on File:US 66 Arizona 1926.svg Author...
DescriptionUS 275 Iowa 1926.svg 16x16 U.S. route shield approximated to the 1948 standards, modified to use the 1926 font set. (The standards are believed...
Section 105 of the US Code. Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory...
