| 2026-07-31 | $23.50 | 8 | PSA | 2019 POKEMON SUN & MOON COSMIC ECLIPSE SECRET #243 FULL ART/KOFFING PSA 8 #243 | — |
| 2026-07-30 | $27.00 | — | Raw | Pokemon TCG Cosmic Eclipse 243/236 Koffing Secret Rare | — |
| 2026-07-29 | $20.50 | 8 | PSA | 2019 POKEMON SUN & MOON COSMIC ECLIPSE SECRET #243 FULL ART/KOFFING PSA 8 #243 | — |
| 2026-07-28 | $21.50 | — | Raw | Pokémon TCG Koffing 243/236 Secret Rare Sun And Moon: Cosmic Eclipse Holo NM 243/236 | — |
| 2026-07-28 | $35.00 | — | Raw | Koffing (Secret) #243 Near Mint English | — |
| 2026-07-27 | $44.99 | 9 | CGC | CGC 9 Koffing 243/236 Secret Rare Cosmic Eclipse Mint Pokemon Card | — |
| 2026-07-27 | $38.28 | — | Raw | Koffing (Secret) #243 Near Mint English | — |
| 2026-07-26 | $65.60 | 9 | PSA | KOFFING 243/236 FULL ART SECRET RARE COSMIC ECLIPSE POKEMON PSA 9 MINT | — |
| 2026-07-25 | $35.99 | — | Raw | Koffing 243/236 SEC Cosmic Eclipse Pokemon Holo NM 243/236 | — |
| 2026-07-25 | $22.99 | — | Raw | 2019 Pokemon TCG Sun & Moon Cosmic Eclipse Koffing 243/236 Secret Rare Full Art 243/236 | — |
| 2026-07-24 | $33.99 | — | Raw | 2019 Pokemon TCG Sun & Moon Cosmic Eclipse Koffing 243/236 Secret Rare FullArt 243/236 | — |
| 2026-07-24 | $29.00 | — | Raw | Pokemon TCG Cosmic Eclipse 243/236 Koffing Secret Rare | — |
| 2026-07-23 | $19.99 | — | Raw | Koffing 243/236 Secret Rare Cosmic Eclipse Pokemon Holo Heavily Damaged AS IS 243/236 | — |
| 2026-07-23 | $46.64 | — | Raw | Pokémon TCG Koffing 243/236 | Cosmic Eclipse Secret Rare Full Art Card | NM/M 243/236 | — |
| 2026-07-23 | $37.85 | — | Raw | Koffing (Secret) #243 Near Mint English | — |
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