Louisiana License Plates
Early pelican plates had a longer state name that extends under the right bolt hole. Also, there was a watermark thread running through the head of the pelican. The design was modified slightly to move the thread to the right side of the plate so it would not run through the pelican. In the process, the state name was shortened enough that it ends before the bolt hole. NGK 569 was spotted in the original design with the longer state name. NMC 680 was spotted in the newer design with the shorter state name.