MA inspection sticker question

We know that 67s didn't have em and if you haven't got any their and it doesn't look like its supposed to have them?I would say from my experience most people wouldn't know.I find that most people don't realize that 67s had none,68s had round and 69s have the rectangular ones (I taught my boy how to determine a mopar by checking this for a quick reference)Where in MA are you?I grew up in the Westfield/Springfield area.