Grade Matrix
PSA
PSA 6
-
PSA 7
-
PSA 8
-
PSA 9
$15
PSA 10
$39
PSA 10: PriceCharting; refreshed Sep 10, 2026
CGC
CGC 8
-
CGC 9
-
CGC 10
$23
CGC P10
-
Availability
Availabilityi
3/10G: —
Graded: insufficient data · Sales per year: ~29 sales/yr · Graded copies: 2
TCGplayer Price History
Reverse HolofoilProduct 107265Fetched Sep 7, 3:47 AM
TCGplayer market
$0.98
Latest avg sale
$0.00
Units sold
102
Card Value FAQ
How much is Professor's Letter (BREAKthrough #146) worth?
GemDelta shows Professor's Letter (BREAKthrough #146) at $0.97 market price (TCGplayer market). Its Delta multiple is 31.6x.
How much is a PSA 10 Professor's Letter (BREAKthrough #146) worth?
A PSA 10 Professor's Letter (BREAKthrough #146) is currently shown at $38.81. GemDelta labels this as an unverified PriceCharting guide fallback rather than verified recent sales.
Is Professor's Letter (BREAKthrough #146) worth grading?
GemDelta records a 0.00% gem rate for Professor's Letter (BREAKthrough #146), with 0 PSA 10 copies out of 2 total PSA grades and a 31.6x Delta. That describes the grading profile; it is not financial advice.
What is the Reverse Holo version of Professor's Letter (BREAKthrough #146) worth?
The Reverse Holo version of Professor's Letter (BREAKthrough #146) is shown at $0.97 market price. That value is for this stored card variant, not the base printing.