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PSA 10: PriceCharting; sales checked Aug 17, 2026
GemDelta shows Professor Oaks Visit (Secret Wonders #122) at $0.24 market price (TCGplayer market). Its Delta multiple is 25.6x.
A PSA 10 Professor Oaks Visit (Secret Wonders #122) is currently shown at $500. GemDelta labels this as an unverified PriceCharting guide fallback rather than verified recent sales.
GemDelta records a 8.47% gem rate for Professor Oaks Visit (Secret Wonders #122), with 5 PSA 10 copies out of 59 total PSA grades and a 25.6x Delta. That describes the grading profile; it is not financial advice.