Centering60/40 or better on the front. 80/20 or better on the back.
CornersModerate wear on corners, with fraying & chipping. Noticeable by the naked eye and more pronounced under magnification.
EdgesModerate imperfections such as nicks & light chipping. Edges show wear & fraying but are generally clean and intact.
SurfaceVery clean surface with only the slightest signs of wear. Light scratches, tiny marks, & print lines are visible under close inspection.