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PSA 10: PriceCharting; refreshed Sep 10, 2026
GemDelta shows Professor Oak's Research (Expedition #149) at $32.48 market price (TCGplayer market). Its Delta multiple is 5.58x.
A PSA 10 Professor Oak's Research (Expedition #149) is currently shown at $96.00. GemDelta labels this as an unverified PriceCharting guide fallback rather than verified recent sales.
GemDelta records a 10.5% gem rate for Professor Oak's Research (Expedition #149), with 9 PSA 10 copies out of 86 total PSA grades and a 5.58x Delta. That describes the grading profile; it is not financial advice.
The Reverse Holo version of Professor Oak's Research (Expedition #149) is shown at $32.48 market price. That value is for this stored card variant, not the base printing.