Iowa - U.S. Highway 18, U.S. Highway 32, U.S. Highway 61, and U.S. Highway 65
These shields are all cast out of aluminum-zinc alloy, and the hand-painted finish appears to be the factory paint.
Photo courtesy of Jake Bear.
Reverse side of US-18 shield.
Photo courtesy of Jake Bear.
Photo courtesy of Jake Bear.
Reverse side of US-32 shield.
Photo courtesy of Jake Bear.
The 61 shield is 1/2 inch thick, as opposed to the other three, which are 3/8
Photo courtesy of Jake Bear.
Reverse side of US-61 shield.
Photo courtesy of Jake Bear.
Photo courtesy of Jake Bear.
Reverse side of US-65 shield.
Photo courtesy of Jake Bear.