Some areas in Coach bags
are glued as well as stitched. Zipper brands including YKK have absolutely
nothing to do with authenticity. And if you actually read those Guides you should have read about the extra number in some serials.
"Up until the end of the 1990s, the serial numbers were mostly hand-stamped using a mechanism that allowed the operator to change numbers quickly, and often in early Coaches you can see the top or bottom of the next number in line above or below the actual serial number. And rarely the dash between the two halves was skipped over and a string of 8 numbers would be stamped. Neither of these production glitches means that the bag is a fake..."
http://reviews.ebay.com/Coach-Serial-Numbers-the-Basic-Facts?ugid=10000000034886433
As for the zipper - read my Signature, it's in Purple under all 13,700-plus of my posts. And you may want to read this again:
http://reviews.ebay.com/Coach-Authenticity-Guides-Facts-and-Myths?ugid=10000000062607882
From the front pocket and measurements it's a Compartment Bag from the late 1980s, style number 9850.
ALWAYS check here before assuming you've been sold a fake and accusing a seller of violating Ebay policy and Federal law.
And stop believing the misinformation and just plain lies found in almost all online "Authenticity Guides" about Coach, the Salearea Guides being one of the few exceptions. The other ones aren't worth the electrons it takes to display them. Save the URL for the Salearea Guides for future reference.