Unfortunately I have seen way too many key date coins just like this, usually from people that just don't know any better. At a shop I worked in we had a lady bring in her late husbands coin collection, wich she had polished up with the silver polish to make his old coins look pretty (I'm sure it was in hopes of getting a better price), sad to see what was probably once a nice XF 1889-CC turned into an almost identicle looking coin as the one in the above auction, he had a lot of the key date coins in US series too - all ruined. 1893-S morgan, 1909-S vdb, 1914-D every one of them was freshly polished to within an inch of their lives.
"Buy the Book Before You Buy the Coin" - Aaron R. Feldman - "And read it" - Me 2013!
ANA Life Member #3288 in good standing since 1981, ANS, Early American Coppers Member (EAC), Colonial Coin Collectors Club member (C4), Conder Token Collector Club member (CTCC), Civil War Token Society (CWTS) member, Liberty Seated Collectors Club (LSCC) & Numismatic Bibliomania Society member (NBS), USMex, Member in good standing, 2¢ variety collector.
See my want page:
http://goccf.com/t/140440