Struck me as odd when I lived there, but as I was told, "Welcome to Oklahoma. Set your clock back 60 years!" Regardless, what was even more odd was that I was issued two AR plates while there were hams with only one AR plate on their vehicle. Apparently somewhere the law was changed from one to two but those with one weren't given two and I was required to have two and couldn't just run with one. The regular plate remained behind the seat and renewed as required. Kansas used to issue a regular plate as an interim while the AR plate was being made which had to be turned in when the AR plate arrived at the DMV. Now they issue an interim AR plate printed on paper to use for the week to ten days until the permanent plate arrives in the mail. Current Kansas AR plates now say Amateur Radio at the bottom and print the two letter county designator at the top left which AR plates like my avatar didn't have prior.