An 1859-S Seated Half "professionally graded as fine" (although it's unslabbed - must have been his cousin Vinny), has an unusual mark above the head on the obverse, and through the 'F' and 'D' of HALF DOLLAR on the reverse. The seller lists this as a "striking error". Personally I can't recall any such error on the coins I've seen, but it's strikingly similar to a repaired hole. Any one else have the same inkling?
http://cgi.ebay.com/ws/eBayISAPI.dl...WA:IT&ih=019