Jaime Hernandez: The 1992-P Quarter maybe underrated but it is very scarce in grades of MS66 and higher. Most examples come with obvious flaws especially on Washington's bust. Many scratches are usually visible as the dies used to strike the coins weren't the best of quality. Examples in MS66 are scarce with a few hundred examples known in this grade. In MS67 condition they are really scarce with less than 10 examples know and none being finer.
Wondercoin Collection (PCGS Set Registry)