Raw, it’s a $0.27 card. Slabbed as a PSA 10 it sells for 815× that, and PSA has only ever handed out 13 of them.
| October · 2 sales · median $268 · +182% vs May | |||||
| 28 | eBay | 2023 POKEMON MEW EN-151 #109 KOFFING REVERSE HOLO PSA 10 | −30% | $220 | |
| 18 | eBay | 2023 Pokemon KOFFING #109/165 Scarlet & Violet 151 Reverse Holo Common EN PSA 10 109/165 | +110% | $315 | |
| May · 2 sales · median $95 | |||||
| 13 | eBay | Pokemon TCG Scarlet & Violet 151 English #109 Koffing Reverse Holo PSA 10 109/165 | +275% | $150 | |
| 6 | eBay | 2023 POKEMON MEW EN-151 REVERSE HOLO #109 KOFFING PSA 10 #109 | — | $40 | |