Professor's Letter.
updated Aug 14, 2026
Price history and graded value
Grading odds
PSA has graded 10 copies. Where they landed:
2 of the 4 grades priced above had no sales at that grade, so the figure is modelled from the grades that did rather than observed.
A PSA 10 sells for $36.89 against $0.66 raw plus a $25 fee. Without a population report we cannot weight that by the odds, so treat it as the best case: most submissions come back below the top grade.
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The same card in other sets
What moves the price of this card
The Professor's Letter on this page is the Reverse Holofoil printing from XY - BREAKthrough, and it trades at $1.03 in near mint condition. The other 1 printing of the same card sits lower, which is normal: the scarcer print run always carries the premium.
Condition does most of the work below the surface. A copy with soft corners or a print line off centre trades well under the market price shown here, and a copy clean enough to grade trades well above it, which is why the PSA 10 sits at $36.89. Before you value your own copy, look at the corners under a light and check the centring on the back, where most cards give themselves away.