Thread: The long awaited PSA half grade!
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Old 01-21-2008, 09:08 AM
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Default The long awaited PSA half grade!
Posted By: Steve Clark

Matt/Eric,

I offered up this response in relation to determining a breakpoint between whole and half grades:

PSA 9 centering can go up to 65/35.

PSA 8 centering can go up to 70/30.

PSA 7 centering can go up to 75/25.

I suppose the assumtion would be that if the cards in each of the grades exhibit the corners for the grade, then the centering determines that half-grade. Using 50/50 as the base, then it would break out as such:

PSA 7.5: 50/50-65/35
PSA 7.0: 65/35-75/25

PSA 8.5: 50/50-60/40
PSA 8.0: 60/40-70/30

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