I was afraid of that.
To echo what BeenBurned told you, the bag isn't genuine. As far as I can tell Coach never did that style of Gallery Tote with the Optic fabric that bag is made of, and the Coach logo on the leather part isn't quite what it should be. But the biggest red flags are inside. The Logo lining (or any lining using Coach's logo or C pattern) would never be used in any bag with a full C pattern on the outside. Also the serial number is a widely-used and well-known fake and only belongs on a multicolor Scribble Tote like the one shown below. Any and every bag with a -5659 style number in the serial should look like the picture below. That serial number, or at least the style number -5659, is mentioned in Part 2 of the list of known fake Coach serial numbers.
http://forum.purseblog.com/coach-sh...enticity-questions-94198-37.html#post18503310
It seems like your aunt somehow obtained or was sold a fake bag. You can use it, but it can't be sold anywhere in the US under any circumstances. Sorry to have to give you unpleasant news.