Centering70/30 or better on the front. 85/15 or better on the back.
CornersMinimal rounding with only light signs of handling. Light chipping & minor nicks present on corners. Corners maintain most of their original sharpness.
EdgesPerfect edges under normal inspection. Any tiny imperfections are barely visible under close magnification. Edges are sharp and clean.
SurfaceVery clean surface with only the slightest signs of wear. Light scratches, tiny marks, & print lines are visible under close inspection.