I don't know the seller, but my guess is that he used the "have one to sell - sell now" link on this auction to save time:
http://www.ebay.com/itm/1909-E91-Ame...3D252110443723
Essentially, it's an eBay shortcut to make it easier for sellers with similar items to get theirs listed. Unfortunately, I think this seller forgot to update the title in haste. I have a feeling this one may be an innocent (albeit sloppy) mistake!