Posted By:
anonymousdave...to read (re-read) the various written standards the grading companies have...regardless of how often they are ignored by the graders.
In this case (from the PSA web-site):
A PSA Good 2 card's corners show accelerated rounding and surface wear is starting to become obvious. A good card may have scratching, scuffing, light staining, or chipping of enamel on obverse. There may be several creases. Original gloss may be completely absent. Card may show considerable discoloration. Centering must be 90/10 or better on the front and back.