Centering55/45 or better on the front. 70/30 or better on the back.
CornersModerate wear on corners, with fraying & chipping. Corners are noticeably played, but have good structural integrity.
EdgesLight edge wear with light chipping & small nicks visible with the naked eye & under magnification. The edges are clean with no major imperfections.
SurfaceExtensive damage including deep creases, heavy scratches/micro-scratches, stains, and surface residue.