I know in NJ the letters meant counties the license plate was issued in. Is that the same with the plates in TX?
Texas plates haven't included a county as long as I've been driving...and I've been driving since 1977. They are a series of letters and numbers, I'm guessing that was just the design for 1953 and they only needed two letters at the time. There's a guy in Lockhart who deals in vintage plates, my wife bought me a set of '63 plates for my Riv from him, I bet he would know. And I just found this: http://www.txlicenseplates.com/history/history.html
Interesting, it says in the entry for 1945 that the two stacked letters did not indicate counties, but that plates were issued to counties in alphabetical order, so it counties often had the same letters for several years. http://www.txlicenseplates.com/history/passenger_summary.pdf
I don't know about that, but why do the cops keep writing my numbers down? I mean, just once should do, right? WTF?