The Fish Purse
Any dolt can tell you that online auctions are lousy with creeps peddling fake designer handbags. They are easy to spot with their too-good-to-be-true, buy-it-now prices, hyperbolic guarantees, bad zippers, and plastic-wrapped handles. The auction houses do their best to protect buyers from the crooks who would have you pay hundreds for a bad bag. EBay maintains an up to date page that tells you how to identify a fraud.
But what I have learned the hard way is that grey-market dealers of imperfect bags or irregulars can easily pass their goods off as authentic over the web.