The obverse photo is rather dark so it's hard to know for sure, but I would guesstimate MS-64. The reverse looks very nice. There are other folks on CCF with more grading expertise, so I look forward to seeing what they think.
The four sources I'm using to learn grading are:

Bressett, K. E. & Bowers, Q. D. (2006).
The official American Numismatic Association grading standards for United States coins (6th Ed.). Atlanta, GA: Whitman Publishing. {ISBN-13: 978-0794819934}

Bowers, Q. D. (2012).
Grading coins by photographs (2nd Ed.). Atlanta, GA: Whitman Publishing. {ISBN-13: 978-0794836870}
PCGS Photograde Online - and they have a mobile app for iPhone, Android, & Windows phones.

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