Koffing
How is this value calculated?
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| eigene rohe NM-Verkäufe | 5 | 2 mo | £4.05 | 40.82 |
| eigene LP-Verkäufe ÷ 0.6599 | 4 | 2 mo | £2.72 | 2.33 |
| eigene PSA9-Verkäufe ÷ 6.4144 | 2 | 3 mo | £8.33 | 0.35 |
Measured error for this era×language (backtest): ±17 %
No PSA numbers for this print yet — in any language.
| 2026-07-25 | EN | RAW UNKNOWN | Koffing 51/102 Shadowless Base Set Pokemon Card 1999 · eBay | £6.32 |
| 2026-07-19 | EN | RAW NM | Koffing 51/102 Common Base Set Shadowless Pokemon Unlimited | £3.71 |
| 2026-07-18 | EN | RAW UNKNOWN | 💥 KOFFING | Pokemon TCG 1999 | (Shadowless Set) Non Holo Vin | £2.41 |
| 2026-07-18 | EN | RAW UNKNOWN | Koffing - Shadowless - 51/102 Base Set - Pokémon TCG - 1999 | £3.70 |
| 2026-07-18 | EN | RAW LP | Pokemon Card - Koffing Base Set Shadowless 51/102 1999 Commo | £2.96 |
| 2026-07-15 | EN | RAW MP | Pokemon Card - Koffing Base Set Shadowless 51/102 1999 Commo | £2.22 |
| 2026-07-13 | EN | RAW UNKNOWN | Pokémon TCG Koffing Shadowless Base Set 51/102 For 1 Card | £8.17 |
| 2026-07-11 | EN | RAW LP | Koffing 51/102 Pokémon 1999 Shadowless Base Set LP | £1.85 |
| 2026-07-11 | EN | RAW LP | 1999 Pokémon Base Set Shadowless Koffing 51/102 LP | £1.48 |
| 2026-07-09 | EN | RAW HP | Pokemon TCG - Koffing - 51/102 - Shadowless Base Set - HP Co | £1.32 |
| 2026-07-08 | EN | RAW MP | Pokémon TCG Koffing Base Set #51/102 WOTC Vintage 1999 Shado | £0.55 |
| 2026-07-06 | EN | RAW LP | 1999 Pokémon Base Set Shadowless KOFFING 51/102 LP | £1.57 |
| 2026-07-04 | EN | RAW MP | KOFFING 51/102 SHADOWLESS COMMON BASE SET POKEMON LP/MP | £1.57 |
| 2026-07-02 | EN | RAW NM | Pokemon TCG - Koffing 51/102 Base Set Common Shadowless WOTC | £4.38 |
| 2026-07-02 | EN | RAW MP | Pokemon TCG Base Set Shadowless Koffing 51/102 Regular MP | £0.78 |
| 2026-06-30 | EN | RAW HP | Pokemon TCG Koffing 51/102 Shadowless Base Set Rare Common M | £1.56 |
| 2026-06-29 | EN | PSA 9 | Koffing Common 1st Shadowless Base Set 51/102 PSA 9 Mint Eng | £82.89 |
| 2026-06-29 | EN | RAW MP | Pokemon TCG Koffing 51/102 Shadowless Base Set Rare Common M | £1.77 |
| 2026-06-28 | EN | PSA 9 | Pokémon Koffing 51/102 Base Set Shadowless Regular Common PS | £16.27 |
| 2026-06-26 | EN | RAW DMG | Pokemon TCG Base Set Shadowless Koffing 51/102 Common HP/DMG | £1.56 |
#243 · SEC
#SV076 · SR
#114 · C
#61 · C
#62 · C
#79 · C
#27 · C
#60 · C
#76 · C
#56 · C
#68 · C
#50 · U
#72 · C
#28 · CFrequently asked questions
Is it worth grading Koffing Base Set 51/102?
A PSA 10 currently sells for about £248.67, raw the card sits at £3.99 — 62,3× as much. Mathematically, submitting returns £248.67 on average, before fees and shipping. Rule of thumb: submit when the value at a realistic grade is at least double the raw value — which is the case here. Centering decides it: an off-centre card will not get a 10.
What will I get for Koffing Base Set 51/102 if I want to sell quickly?
Half of all sales fell between £1.56 and £3.71, with a median of £1.85. Selling fast lands you nearer the lower end; with patience, good photos and a complete title the upper end is achievable.
Below which price is an offer for Koffing Base Set 51/102 unrealistic?
The cheapest genuine sales were around £1.32. Offers well below £0.79 are typically fakes, mislabelled cards or a different variant — ask for photos of all four borders and a close-up of the surface.
How does lastsold determine the market value?
lastsold uses only real sales — eBay plus auction houses like Goldin & Fanatics — recent sales count more (recency weighting), outliers and fakes are removed. It's not an estimate but actual sold prices, separated by condition, language and grading.