Take a look at this auction which recently ended and pay close attention to the serial number:

http://cgi.ebay.at/ws/eBayISAPI.dll?...m=350214719033

Now look at you-know-which-ebay-spammer's new listing:

http://cgi.ebay.com/ws/eBayISAPI.dll...#ht_3025wt_928

Can we all agree that they are the same lens? What happened to the remaining digit on the serial number? Am I missing something obvious here? This appears to be awfully sleezy to me and I just don't see how an engraved digit can disappear like that.