The 1863-S Half Dollar is relativerly common in circulated grades, moderately scarce in Mint State, but very rare above MS64. This scenario is typical of most San Francisco Mint issues of the period because of their distance frpom the East Coast and the relatively few collectors who cared about mintmarks.
The luster on 1863-S Half Dollars is usually brilliant to satiny. The strike quality is generally good, but sometimes the stars at the top of the obverse can be weak...the same is true of the denticles on both sides. One might expect these coins to be "baggy" from excessive transporting, but such is not the case.