I'm at AU55 just because it's a weaker strike and Zurie is correct a pull away effect from minting process. Not uncommon at all and can help prove original coloring/toning.
See about halfway down under #2
http://www.jhonecash.com/coins/tone...racteristics for a good description of the "pull away effect"
"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