The small mintage of the 1867 Quarter Dollar makes it a scarce date in most grades, but especially so in Mint State. The majority of Uncirculated survivors only grade out at MS62, and the finest examples certified by PCGS are a pair of MS64s.
One 1867 Quarter Dollar remains an anomaly. In 2008, a PCGS MS63 example in an old, green insert holder sold for $86,250 -- an amazingly high price for this date. More than two years later, a different PCGS MS63 sold for much less at $6,325, but that price was more in line with price guides current at the time. Something about the first example must have been special, as we cannot explain why it sold for such a spectacular price. Perhaps it upgraded and is no longer in a PCGS MS63 holder.
The 1867 Quarter Dollar usually comes well-struck. The challenge for the collector is to find a nice, problem-free, circulated example. Good luck with that!