I'm not sure why you have posted a solution to your own problem. But yes those are ways you can tell.
1. If it is a signature piece, the C's will start centered and go out from there. If it is leather, it will feel buttery smooth.
2. The stitching and hardware. The stitching will be tight, even and
straight. There should be no loose strands or restitching. Most
hardware is stamped Coach, like the snaps or buckles. You may have to
really look for the stamp, like on the backs of buckles. The hardware
is not cheap looking nor will it peel or crack.
3. The hangtag. It is usually leather, the same color and stitching as
the bag itself. The Coach lozenge is raised from the tag, not embedded
into it. On my bags, the lozenge is only stamped on one side of the
tag.There are a few styles that come with metal hangtags. But, look at
the metal hangtags at the link below to see what they look like. Most
counterfeit come with cheap, shiny silver hangtags.
4. The lining. Signature bags never have signature lining.
5. The zippers. Coach uses YKK zippers. The logo is usually found on
the side of the metal zipper pull. Coach zipper pulls are either
leather, the same color/stitching as the bag or a series of metal rings.
5. Unless it is a small piece, like a wristlet, there is a creed and
registration number on the inside. It is a leather patch sewn into the
lining of the bag. The creed will be written in justified, capital
english letters. The abbreviation No. is followed by a letter, then a
one or two digit year code. For example, 6 for 1996, 06 for 2006. After
the year code is another letter or one or two digits, the a dash. The
numbers after the dash are the style number of the bag. If it is a
factory store bag, it will either have an F before the style number or
a bullseye stamp in one of the upper creed corners. If it were bought
through a resale store, like TJ Maxx, there will be an X stamp on the
However, counterfeit bags copy a lot of these details, so to tell the
difference, you have to know the real thing. You can go to an
authorized dealer to familiarize yourself and/or see the link below. On
this authenticating page, there are tips and pictures of real and fake
to help learn the difference,
Hope this helps