Older interstate shield with state name (Photo by Joe Koehler).
Another interstate shield with "UTAH". These are very scarce on the roads (Photo by Joe Koehler).
Older US highway sign. The border and the legends are embossed, while the "6" is flat. This sign was probably issued in the 1940's as most states were transitioning from embossed to flat signs and were gearing up to use the new FHWA font. (Collection of Robert Edgar).
Current Utah state route marker. The beehive is Utah's state symbol (My Collection).
Photo from 1964 Utah state highway map proving that beehive signs go back to at least the early 1960's (Map from my collection).
Older Utah state route marker. This design dates back to the 1930's. This particular sign is probably from the 1950's due to the Scotchlite relectorization. (Photo by Joe Koehler).
Another older Utah route marker. This sign is embossed and is not reflective. A very unique sign indeed. (Collection of Robert Edgar).