Arizona Highway Patrol. The black on copper plate colors matched their patrol cars. Arkansas State Police. California Highway Patrol, special project license plate. State owned vehicle.
Experimental plate run on highway patrol cars to test reflectorized sheeting for general public use.
Colorado State Patrol. Connecticut State Police. Flat- tened restamped passenger plate. See cover of Saturday Evening Post, March 24, 1945. Delaware State Police, 1st type Front plate.