Repunched Mintmark (RPM), D over D, FS-501, Fox V-101.  Nice clear repunching so this appears to be an earlier die state.  Uncirculated, certified PCGS Details for relatively minor hairlines from the common light cleaning of the Obverse only.  Typical of coins that came out of a Whitman or Oberwise 'coin board', whose owners commonly dusted them off using a cloth.  My estimate of an approximate technical grade level (absent the hairlines) is MS-61 based upon how early Walkers are typically graded.  Establishing value for a Details coin is difficult, so my price is based simply upon my cost.