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Koffing 51

Koffing 51 1999-2000

Base Set · Common · #51

The 1999-2000 printing — a separate card from the standard version.

£2.83

PriceCharting · converted to GBP

0.0%1D
-13.2%7D
-5.4%30D

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Find this on eBay UK
Raw · ungraded£2.83 PSA 10£72.88 PSA 9£30.40 CGC 10£29.26 BGS 10£94.54

UK sellers only. Opens eBay in a new tab.

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Prices by grade

Today's figures for every tier.

Raw · ungraded£2.83
PSA 10£72.88
PSA 9£30.40
CGC 10£29.26
BGS 10£94.54

At a glance

30-day high£3.26
30-day low£2.69
Tracked high£3.26
Days tracked192
IllustratorMitsuhiro Arita
Pokédex109

Price history

117 readings · 192d
HoloHawk awaiting data£2.83-13.2%PriceChartingPulseTCG awaiting data
16 Oct19 Oct19 Oct20 Oct20 Oct23 Oct
HoloHawk awaiting data£2.83-5.4%PriceChartingPulseTCG awaiting data
23 Sept25 Sept15 Oct19 Oct20 Oct23 Oct
HoloHawk awaiting data£2.83+53.8%PriceChartingPulseTCG awaiting data
14 Apr8 May4 Jun28 Jun21 Jul23 Oct
Three independent readings on one scale. A reading is recorded only when a price changes, so a flat stretch means it held. Hover or tap any day. HoloHawk and PulseTCG have no readings for this card yet.

Graded price history

PSA 10 · £72.88
£72.88+4.8%PSA 10£30.40+12.4%PSA 9£29.26-33.9%CGC 10£94.54-0.8%BGS 10
14 Apr8 May4 Jun28 Jun21 Jul23 Oct
Graded prices from PriceCharting, in GBP. PSA 10 has been tracked since April 2026; the other tiers began recording 3 August 2026 and join the chart as their history builds.

New listings per day

Building
How much new stock hits the UK market each day The scanner records every new UK listing it sees — around 13,600 a day. This charts how many appear for this card once the daily rollup has readings for it.

A direct count of listings we saw appear — not an estimate of every listing on eBay.

Confirmed sales per day

Building
How often this card actually sells We record roughly 4,600 UK auction outcomes a day across the catalogue. This charts how many close with a winning bid, day by day, from the first confirmed sale for this card.

Only auctions that finished with a bid count. A listing vanishing is not proof of a sale, so it is not counted as one.

Recent confirmed sales

Recording live
No confirmed sales for this card yet We log every UK auction that closes with a winning bid — around 4,600 a day across the catalogue. The first result for this card appears here as soon as one sells.

On sale now in the UK

Building
Live UK listings for this card The scanner records every new UK listing it sees — around 13,600 a day. This fills as soon as one appears for this card, showing asking prices cheapest first.
Where these numbers come from

Three independent readings, shown side by side rather than blended into one figure:

HoloHawk Our own market price, from live UK listings
PriceCharting Published reference price, USD converted to GBP
PulseTCG Published reference price, natively GBP

A reading is stored only when a price actually changes, so flat stretches mean the price held — not that data is missing. Where a source has no history for an item its line is absent rather than flat. Confirmed sales are UK auctions that closed with a winning bid, observed within three minutes of close, so each is a lower bound. Live listings are asking prices, not sales. Supply and sales counts are direct observations — listings we saw appear and auctions we saw close with a bid. We do not infer that a listing sold because it disappeared, so nothing here depends on that guess.

Also in Base Set

10 Pack Blister Costco £16,093
Charizard 4 1st Edition £5,219
Plastic Pack Demo Game £2,248
Blastoise 2 Trainer Deck B £1,200
Charizard 4 Shadowless £762