Reproduction of a Hawaii Wartime Secondary Route shield based entirely off a 1944 photograph and scaled in approximation to the 1926 U.S. Highway shield (used as the Wartime Primary Route shield in Hawaii). These routes were set up for strategic use in 1941 by the U.S. Military. Uses the FHWA 1926 fonts (not publicly available). (United States law does not permit the copyrighting of typeface designs, and the fonts are meant to be copies of a U.S. Government-produced work.)
File:HI-185.svg;File:US 66 Arizona 1926.svg;1944 Photograph of Primary and Secondary Wartime Route shields
Matthew Anderson (modified from works by Fredddie and Levente Jakab)