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PSA 10: 45-day PSA 10 sold-comp median
GemDelta shows Koffing (Base Set #51) at $1.32 market price (TCGplayer market). Its Delta multiple is 93.1x.
A PSA 10 Koffing (Base Set #51) is currently shown at $127. GemDelta labels this as a 45-day PSA 10 sold-comp median.
GemDelta records a 27.8% gem rate for Koffing (Base Set #51), with 396 PSA 10 copies out of 1,424 total PSA grades and a 93.1x Delta. That describes the grading profile; it is not financial advice.
| Date | Sale |
|---|---|
| Aug 10, 2026 | $115.07 |
| Aug 6, 2026 | $139.90 |
| Jul 13, 2026 | $127.50 |
| May 29, 2026 | $125.00 |
| May 29, 2026 | $134.56 |
| Apr 17, 2026 | $115.00 |
| Mar 30, 2026 | $91.00 |
| Mar 30, 2026 | $92.00 |
| Mar 14, 2026 | $100.00 |
| Mar 7, 2026 | $100.00 |