This can only be a joke, folks. Someone’s pulling a variation of the API hoax, that’s all.
It might be a joke, but the auction does (for now) actually exist on the true eBay site. Go to the auction and copy the item number (160345151420) then go to www.ebay.com and paste it into the search edit box. It will take you back to the auction. It’s real.
If it’s a birth certificate from a HOSPITAL, which the second ad said it was, it is NOT A GOVERNMENT DOCUMENT.