Koffing
Base Set Unlimited · 51/102 · Non Holo
Ungraded Market Price
£1.20
True Best Offer Price 🔒
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Excl. True Best Offer Prices · Incl. Buyer Fees
Median of last 15 UK eBay sales
Updated 10 Oct 2026
Median of last 15 UK eBay sales
Updated 10 Oct 2026
Near Mint 🔒
£***.**
Lightly Played 🔒
£***.**
Mod. Played 🔒
£***.**
Heavily Played 🔒
£***.**
Ungraded
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Recent UK eBay Listings
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All Conditions
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Newest
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Pokémon TCG Koffing Base Set 51/102 Regular Common
Sold 08 Oct 2026
£2.24
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Pokemon Koffing 51/102 Base Set Unlimited
Sold 08 Oct 2026
£0.26
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Koffing 51/102 Common Base Set Pokemon NM Pack Fresh
Sold 08 Oct 2026
£3.92
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Pokémon TCG Koffing Base Set Unlimited Common Card 51/102
Sold 08 Oct 2026
£1.38
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Pokémon TCG Koffing Base Set 51/102 Regular Common
Sold 06 Oct 2026
£0.21
View on eBay →
Koffing Base Set 51/102 Pokemon Card 1999 Wizards Vintage
Sold 04 Oct 2026
£0.63
View on eBay →
Pokémon TCG Koffing Base Set 51/102 Regular
Sold 03 Oct 2026
£1.65
View on eBay →
Koffing 51/102 Common BS Base Set Unlimited Pokemon HP
Sold 03 Oct 2026
£0.72
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Koffing - 51/102 - Original Base Set - WOTC
Sold 03 Oct 2026
£1.16
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Koffing 51/102 | Base Set | Non Holo Pokemon Card LP
Sold 02 Oct 2026
£0.71
View on eBay →
Koffing 51/102 Base Set Unlimited Pokemon Lightly Played
Sold 29 Sep 2026
£0.30
View on eBay →
Koffing 51/102 Base Set Unlimited WOTC Vintage Pokemon
Sold 29 Sep 2026
£1.70
View on eBay →
Wizards Base Set Koffing 51/102 English 50HP Common Unlimited 1999 Regular
Sold 27 Sep 2026
£1.20
View on eBay →
Pokémon TCG Koffing Base Set Unlimited Common Card 51/102
Sold 27 Sep 2026
£2.09
View on eBay →
Koffing 51/102 Base Set 4th Print Pokemon Card
Sold 27 Sep 2026
£1.72
View on eBay →
+ hundreds more sales available in the ValuDex app
Graded Card Prices
| Grade | PSA | BGS | CGC | ACE |
|---|---|---|---|---|
| 10 |
£***.**
6 sales🔒
|
- | - |
£***.**
1 sale🔒
|
| 9 |
£***.**
9 sales🔒
|
- | - |
£***.**
2 sales🔒
|
| 8 |
£***.**
1 sale🔒
|
- | - |
£***.**
1 sale🔒
|
| 7 |
£***.**
4 sales🔒
|
- | - | - |
Graded prices are median of UK eBay sold data. Unlock full graded history in the ValuDex app.
Card Details
10Foul Gas
Grass · Grass
Flip a coin. If heads, the Defending Pokémon is now Poisoned; if tails, it is now Confused.
WeaknessPsychic ×2
This is the preview. ValuDex is the full picture.
UK marketplace data. Zero currency conversions. Condition-true pricing.
A UK-focused Pokémon card pricing app that shows what cards sell for inc. Best Offer, filters out fake or incorrect listings, tracks your collection with a real-time portfolio, and helps you quickly see true condition-based valuations before you buy or sell.