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Go Back Forums > Net54baseball Main Forum - WWII & Older Baseball Cards > Net54baseball Vintage (WWII & Older) Baseball Cards & New Member Introductions

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Old 11-23-2022, 10:52 PM
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Originally Posted by cgjackson222 View Post
So a PSA 7.5 sold for 705K by Heritage in August, 2022.

But PSA 8's sell for ~$1.5M

SCP is estimating (hoping for) $1.5M.

So I think if it gets to $1M, that could be considered added value from the crossover from the PSA 7.5 to the CSG 8.
It does seem crazy to me that a PSA 7.5 would sell for less than half of a PSA 8. Small sample sizes, obviously.
Hammer prices for this card are all about the eye appeal though. There are auctions where one copy sells for double another copy in the same grade.

With this particular Mantle, I think there's no way that CSG puts it on the auction block without known buyers already lined up and at least approximately what they plan to bid on it.
I'm a data scientist who works on problems that are very similar to the problem of "AI" card grading. Here are some links to some of my thoughts on the topic.
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