So, I’ve recently decided I want to purchase Coach bags from the 90’s (I know, not the best time) but I’m getting mixed reviews on how how to figure out when the bag was made. I understand xxx = month, year, factory xxxx= means model number. I bought a handbag that has the first part of the serial number E3S, but if I go by what the “rules” say my new “old” bag wouldn’t be authentic. The stitching, quality and lining seems right, but I just want to get an idea of when the bag was made? Any help?