It could be, Cathy. I know I have bought a few bargain pieces in my day that made excellent birthday presents for people.
I looked at the history and items listed by the seller of the fish. I don't see anything malicious, so he/she may just be passing something on as she received it. That happens quite a bit. The other day I saw a piece being sold by a fairly new person that had "A. Beorbini" written on bottom. It is the way one of our favorite dremel demons signs his "Barbini" pieces. It was really a Seguso piece if I remember correctly. The seller probably thought that she had found something very good that she was passing along. It was a nice piece, but it had been ruined, IMO, by adding the scratches on bottom. (I'll try to find the auction if it is still available.)
At least a label is removable without having to polish it out. And even with shipping, the buyer of the fish paid little more than it would cost retail. I hope that we don't see this fish being offered again and again on eBay.
Added a few minutes later: I found one "Barbini" piece with a forged signature. It is a gray effect dolphin that looks like it was made by Formia (maybe Nason). Barbini didn't do these type pieces. The eBay listing is
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=310190657185. The seller has a couple of other Barbini signatures in his recent listings. The listing I saw the other day had this same signature -- a good one to learn to avoid.