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 very minimal nicks, fraying, & chipping. Not noticeable upon quick inspection, but after thorough evaluation it is slightly visible.
SurfaceMinor scratches or surface marks. Tiny stains or slight discoloration may be visible but do not significantly impact the appearance.