Clean, no rust, centered, but may be loose, but still must be joined to all the pages. No tearing allowed. Very neat, small penciled prices on the interior page or cover of a comic allowed. Otherwise, not allowed. Name and store stamps are allowed only if on back cover and done neatly.
Crooked stamps drop it a grade.
Allowed if smaller than the size of a postage stamp and the comic is not too worn. Otherwise a worn comic with a piece that size missing would be Good. Fingerprints are allowed, except in the case that they are caused by an external agent such as oil on someone's fingers. The cover may have some folds, but the comic must not have been bent in half. This comic has all pages and covers, although there may be small rips or tears.