Centering55/45 or better on the front. 70/30 or better on the back.
CornersClean and sharp corners with almost no visible wear. Tiny imperfections such as minuscule nicks & softening are present under magnification.
EdgesLight edge wear with light chipping & small nicks visible with the naked eye & under magnification. The edges are clean with no major imperfections.
SurfaceVery clean surface with only the slightest signs of wear. Light scratches, tiny marks, & print lines are visible under close inspection.