Centering55/45 or better on the front. 70/30 or better on the back.
CornersNear-perfect corners with only the slightest signs of wear under very close inspection. Corners are sharp and clean with no visible imperfections.
EdgesPerfect edges under normal inspection. Any tiny imperfections are barely visible under close magnification. Edges are sharp and clean.
SurfaceVery clean surface with no visible scratches or marks under normal inspection. Only tiny imperfections visible under magnification.