You are bidding on Dennis the Menace #68 (Sept 1963)published by Hallden/Fawcett in G/VG condition by Overstreet standards (see below)
Good (GD) (ONE 1.8-2.5):
A copy in this grade has all pages and covers, although There may be small pieces missing inside; the largest piece allowed from front or back cover is a ½” triangle or square ¼” by ¼”. Books in this grade are commonly creased, scuffed, abraded, soiled and may have as much as a 2” spine split, but are still completely readable. Often, paper quality is low but not brittle. Cover reflectivity is low, and in some cases, completely absent. This grade can have a moderate accumulation of defects, but still maintains its basic structural integrity.
35-54 (Very Good)
Shows significant wear. Book-length creases or dimples. Spine roll. Some discoloration, fading and soiling. Small piece cam be out of cover from an otherwise finer copy. Store stamp, name stamp, arrival date, or initials. Staples me be discolored with rust migration. Centerfold may be detached. Minor printing and/or bindery defects. Pages may be brown. Minor tape repair on an otherwise better copy.