Originally Posted by
postal packin' mama
THANK YOU! That's better 401-A information than I've found elsewhere. Since my 401-A serial number begins with NA and falls within the first numbers range, it would appear it's likely a 1957.
Thank you again for answering my inquiry about a 401 on your 301 thread.
You welcome. I wish more owners of the 401A, 403A, 500A and 503A would submit their serial numbers so that I can come up with a year of issue for them. You are correct that if you have an early "NA" serial number then your 401A was surely manufactured/made in 1957. Regards, Ray