Koffing Base Set Shadowless PSA 10 Price History
Live PSA 10 Gem Mint price tracking for the 1999 Pokemon Base Set Koffing (#51). Data compiled from verified sold listings on eBay, Goldin, and Fanatics Collect.
Compare Koffing Variants
Koffing was printed across multiple Base Set variants. Click any variant above to view its price history.
PSA 10 Monthly Price History
Monthly average PSA 10 Gem Mint price for the 1999 Pokemon Base Set Koffing (#51). Data covers May 2021 – May 2026.
Recent Gem Mint Sales
| Date Sold | Price | Grade | Source | Listing |
|---|---|---|---|---|
| 2026-05-09 | $341 | PSA 10 | eBay | Pokemon Card Koffing 51/102 Base Set Shadowless PSA 10 GEM MINT #51 |
| 2026-04-24 | $57 | CGC 10 | eBay | 1999 Pokemon Base Set Koffing Shadowless 51/102 CGC 10 #51/102 51/102 |
| 2026-04-17 | $510 | PSA 10 | eBay | Pokemon – Base Set 1st Edit. 1999 Shadowless “KOFFING” PSA 10 Gem/Mint #51/102. #51 |
| 2026-03-22 | $230 | PSA 10 | eBay | PSA 10 GEM MINT Koffing Shadowless Base Set 1999 Pokemon 51/102 #51 |
| 2026-02-03 | $234 | PSA 10 | eBay | 1999 Pokémon Shadowless Base Set Koffing #51 PSA 10 #51 |
| 2026-01-04 | $234 | PSA 10 | eBay | 1999 POKEMON BASE SET SHADOWLESS #51 KOFFING PSA 10 #51 |
| 2025-09-20 | $220 | PSA 10 | eBay | 1999 POKEMON BASE SET SHADOWLESS #51 KOFFING PSA 10 #51 |
| 2025-06-11 | $249 | PSA 10 | eBay | 1999 POKEMON BASE SET SHADOWLESS #51 KOFFING PSA 10 051/102 |
| 2024-12-09 | $138 | PSA 10 | eBay | 1999 POKEMON BASE SET SHADOWLESS #51 KOFFING PSA 10 |
| 2024-11-17 | $81 | PSA 10 | eBay | Pokemon Base Set Shadowless Koffing 51/102 PSA 10 |
| 2024-11-17 | $124 | PSA 10 | eBay | PSA 10 GEM MINT Koffing 51 SHADOWLESS 1999 Base Set WOTC Pokemon Card POP 136 |
| 2024-10-06 | $72 | PSA 10 | eBay | Pokemon Base Set Shadowless Koffing 51/102 PSA 10 |
| 2024-09-08 | $62 | PSA 10 | eBay | 1999 Pokemon Koffing Base Set Shadowless 51/102 Gem Mint PSA10 #51 |
| 2024-07-23 | $51 | PSA 10 | eBay | 1999 Pokemon Koffing Base Set Shadowless 51/102 Gem Mint PSA10 #51 |
| 2024-07-11 | $54 | PSA 10 | eBay | Pokemon Base Set Shadowless Koffing 51/102 PSA 10 |
| 2024-07-08 | $60 | PSA 10 | eBay | 1999 Pokemon Koffing Base Set Shadowless 51/102 PSA 10 Gem Mint |
| 2024-06-24 | $50 | PSA 10 | eBay | 1999 Pokemon Koffing Base Set Shadowless 51/102 PSA 10 Gem Mint English 51/102 |
| 2024-05-19 | $65 | PSA 10 | eBay | Pokemon Base Set Shadowless Koffing 51/102 PSA 10 |
| 2024-05-17 | $52 | PSA 10 | eBay | 1999 Pokemon Koffing 51/102 Shadowless Base Set WOTC PSA 10 Gem Mint – CS9SL 51/102 |
| 2024-04-21 | $32 | CGC 10 | eBay | Pokémon TCG Koffing Base Set 51/102 Shadowless CGC Grade 10 Population 11 51/102 |
| 2024-03-09 | $75 | PSA 10 | eBay | PSA 10 Koffing 51/102 And Switch 95/102 – Pokemon Base Set Shadowless |
| 2024-02-01 | $65 | PSA 10 | eBay | Pokemon TCG – Shadowless Base Set – Koffing – PSA 10 Gem Mint – 51/102 WOTC 1999 #51 |
| 2023-12-28 | $50 | PSA 10 | eBay | 1999 Pokemon Base Set Shadowless Koffing 51/102 PSA 10 GEM MINT |
| 2023-12-17 | $42 | PSA 10 | eBay | PSA 10 GEM MINT KOFFING 51/102 SHADOWLESS Base Set Pokemon Card |
| 2023-10-19 | $47 | PSA 10 | eBay | 1999 Pokemon Base Set Shadowless Koffing #51 PSA 10 GEM MT Vintage Rare Pokémon #51 |
| 2023-07-26 | $50 | PSA 10 | eBay | Pokemon TCG 1999 Base Set Shadowless Koffing 51/102 PSA 10 |
| 2023-07-10 | $41 | PSA 10 | eBay | Pokemon TCG 1999 Base Set Shadowless Koffing 51/102 PSA 10 |
| 2023-07-06 | $55 | PSA 10 | eBay | PSA 10 GEM MINT Koffing Shadowless Base Set Pokemon Card 51/102 |
| 2023-06-17 | $83 | PSA 10 | eBay | PSA 10 GEM MINT Koffing 51 SHADOWLESS 1999 Base Set WOTC Pokemon Card |
| 2023-06-03 | $93 | PSA 10 | eBay | Pokemon TCG 1999 Base Set Shadowless Koffing 51/102 PSA 10 |
| 2023-05-22 | $37 | PSA 10 | eBay | Pokemon TCG 1999 Base Set Shadowless Koffing 51/102 PSA 10 |
| 2023-04-30 | $69 | PSA 10 | eBay | Pokemon PSA 10 Base Set Shadowless Koffing 51/102 |
32 verified gem-mint sales (PSA 10, CGC 10, BGS 10, and other 10-grade equivalents). PSA 10 carries the highest premium; CGC 10 and BGS 10 typically trade at a slight discount. Prices exclude shipping.
About Koffing (Base Set Shadowless)
Basic Grass/Poison. Foul Gas attack causes Confusion or Poison — pre-evolution of Weezing.
Shadowless is the rare transitional variant between 1st Edition and Unlimited. It has no edition stamp AND no drop-shadow border. Printed for only a few weeks in early 1999 before WotC added the drop-shadow that defines Unlimited.
How to identify a Shadowless Koffing:
- No “Edition 1” stamp on the lower-left
- No drop-shadow on the artwork box edges
- Thinner card stock than Unlimited
- Sits between 1st Edition and Unlimited in rarity
Related Pages
FAQ
- How much is a PSA 10 Koffing Base Set Shadowless worth?
- As of May 2026, the monthly average sold price is $234. Individual sales over the last several months ranged from $37 to $510. Prices are volatile — check the chart above for the latest trajectory.
- How do I tell if my Koffing is a Shadowless?
- Look for the markers listed in the identification section above. The key distinguishing features for the Shadowless variant are: no “edition 1” stamp on the lower-left, no drop-shadow on the artwork box edges.
- Where does this price data come from?
- All chart data and recent sales are compiled from verified sold listings across eBay, TCGPlayer, Goldin, and Fanatics Collect. Last refreshed 2026-05-24.
Price data compiled from verified sold listings across major marketplaces and auction houses. Last updated 2026-05-24. This page is informational only and is not investment advice. Card image courtesy of the Pokemon TCG API.