Centering55/45 or better on the front. 70/30 or better on the back.
CornersClean corners with minor visible wear & softening. Tiny nicks are visible upon close inspection and more noticeable under magnification.
EdgesEdges have almost no signs of fraying, chipping, and nicks. Under magnification, multiple flaws are visible, but not significant.
SurfaceVisible scratches & surface marks. Staining & discoloration is present, but with no major damage.