This is actually zero silver. It's a Mardi Gras Dubloon, which sells for around fifty cents. They never made any of these in silver. In all fairness, I don't think the seller realized that. He might have genuinely thought it was silver. However, the high bidder has a legitimate claim, if they choose to dispute it with Listia. I would suggest that Oliver end the listing and relist later with the correct info. It will save a lot of hassles with an unhappy buyer. Sorry, Oliver, for the bad news, but welcome to Listia. May you have better luck in the future.