How does PSA differentiate between a scuff and a scratch on a card's surface?
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A
Scuffs are on the back; scratches are on the front only
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B
A scuff is surface abrasion that dulls the finish without breaking through; a scratch penetrates the surface coating
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C
Scuffs are caused by manufacturing; scratches are always collector-caused
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D
There is no distinction, PSA treats them identically