Hi again.

I have the data on a whole bunch of cars, and just fit yours in with other cars having sequential numbers close to yours. It's just an estimate, but, as far as what the door tag would have said, it's going to be a very good estimate. The actual production date of you car would have probably been a little later, because Ford was only building Mustangs at the Dearborn plant when your car was built, and they were running behind, but, that lag wasn't reflected in what the door tags said. The door tag was just the shceduled production date.
