Centering55/45 or better on the front. 60/40 or better on the back.
CornersCorners are mostly sharp with very slight wear at the tips. Imperfections are barely noticeable without magnification.
EdgesLight edge wear with light chipping & small nicks visible with the naked eye & under magnification. The edges are clean with no major imperfections.
SurfaceVisible scratches & surface marks. Staining & discoloration is present, but with no major damage.