I'am assuming the number 1 is supposed to be a letter A , 1st week of Sept. , the cars engine pad reads Aug. 25th. I've never seen a tag stamped like this and it is good to hear that other members have seen this stamp. I've talked to a couple of the early owners of my car and they recall a crossram set up on it , neither one is the very 1st owner so I have no proof of a factory crossram setup, but would this unusual tag stamping coincide with something they might have done to donote a crossram car?