Current Wyoming interstate, US and state route signs. Wyoming is still religious about placing the state name on its interstate signs. The small number on the signs designates a replacement schedule.
Older embossed US highway sign with cats-eye reflectors. (Collection of Robert Edgar).
Current style Wyoming state route sign. These have been in use since the late 1960's. (My Collection).
Older Wyoming marker used in the 1950s and 60s. The sign is embossed and may or may not be reflectorized (Photo by Joe Koehler).
Wyoming secondary route marker. I'm not sure if these are still in use (Photo by Joe Koehler).