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PSA 10: PriceCharting; refreshed Sep 10, 2026
GemDelta shows Koffing (Great Encounters #74) at $1.38 market price (TCGplayer market). Its Delta multiple is 39.3x.
A PSA 10 Koffing (Great Encounters #74) is currently shown at $58.90. GemDelta labels this as an unverified PriceCharting guide fallback rather than verified recent sales.
GemDelta records a 0.00% gem rate for Koffing (Great Encounters #74), with 0 PSA 10 copies out of 1 total PSA grades and a 39.3x Delta. That describes the grading profile; it is not financial advice.