We're off topic, but what I don't get is what the bad check writer thought to gain, as the chest (hopefully) wouldn't be shipped until the check cleared, which it clearly wouldn't. And of course the woman in Georgia would never get the money since the seller didn't get the money either. The scammer would have thought the numbers were legit or this had no chance of working.
The point isn't getting the chest. The point is getting the victim to wire money.
Here's how it works:
You advertise something. A scammer says, "Hey, I want to buy that!"
"Cool," you say, "send the money."
They do, only instead of the $24.00 you were asking for, they send a check (or money order, or cashier's check, or other negotiable instrument) for $2,400.
"Wait a minute," you say, "That's way too much!"
"Oh, my foolish (assistant|accountant|attorney) made a mistake," the scammer says. "Deposit the (check|money order|cashier's check) and wire me the difference."
So you make the deposit, and your bank takes it, you wire the $2,376 (which doesn't necessarily go to where you think you're sending it--someone in Lagos can just as easily pick up the cash).
Two weeks later your bank calls you to tell you that the check bounced; you have to make restitution, plus pay the bad check fee.
Whether or not you sent the object, the address will turn out to be the second floor over a vacant lot. The scammer doesn't want the object, any more than the short-change artist who buys some trinket wants the object he's buying -- all the short-change artist is looking for is a plausible reason to talk with the cashier.
All that's required to run this scam is an e-mail account and a color printer.
A lot of the bogus checks are physically mailed by people who answered the "Make money stuffing envelopes at home!" ads that you see around. They wind up getting stiffed, too, because when the end of the month rolls around their employer (who was only an e-mail address and a package from Lagos containing checks) vanishes rather than paying them.
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The original check in this case could just as easily have been one of the thousands of checks for $0.00 that PA used to send, or could have been genned up with PA's logo off their website and a copy of Photoshop.
See also:
http://www.fakechecks.org/prevention-faqs.html