Here is another tag that I received with the batch above, it is pretty rusty. I cleaned it as best I could, it is for a 1969 Road Runner, due to the rust I will make my best guess at the whole VIN based on what I can see;
RM23H9A137060
the last two digits are my best guesses, so if you have a 1969 RR close to this and your tag is missing, please contact me with options and a VON number and I will let you know if it is for your car or not.