Home / Base Set / Koffing #51
Koffing #51 Pokémon Card from Pokemon Base Set Set

Koffing #51

Pokemon Base Set
Ungraded
$1.79
59 sales
Sales we held out are listed below, not counted here.
59 sold in 28 days · latest 2 days ago
$0.23 $5.20
$1.99 2 days ago Koffing 51/102 Common Base Set Unlimited Pokemon Lightly Played 51/102 $0.99 2 days ago Koffing 51/102 Common Base Set Unlimited Pokemon Moderately Played 51/102 $0.23 3 days ago Koffing · Moderately Played · Normal · English $0.34 3 days ago Koffing · Lightly Played · Normal · English $0.47 3 days ago Koffing · Lightly Played · Normal · English $0.98 3 days ago Koffing · Near Mint · Normal · English $0.30 3 days ago Koffing · Moderately Played · Normal · English $1.55 3 days ago KOFFING - 51/102 Common Base Set Unlimited Pokemon MP 51/102 $2.11 3 days ago Koffing 51/102 Common Base Set Unlimited Pokemon Lightly Played 51/102 $4.14 5 days ago Koffing 51/102 Base Set Unlimited Common Pokemon Card NM $2.99 5 days ago KOFFING 51/102 COMMON BASE SET UNLIMITED POKEMON NM 51/102 $1.37 5 days ago Koffing 051/102 Pokemon Common Base Set Card LP $1.79 5 days ago Koffing 51/102 Common Base Set Unlimited Pokemon Moderately Played 51/102 $0.99 5 days ago Pokemon Base Set #051/102 Koffing Card TCCCX 051/102 $0.99 6 days ago Koffing 51/102 Base Set Pokemon Card $2.21 last week Koffing 51/102 Base Set - Common Pokemon Card - NM/Mint $1.19 last week 1999 Pokemon Koffing 51/102 Base Set Common Vintage WOTC TCG 51/102 $1.76 last week Pokemon Koffing 51/102 Base Set Unlimited 51/102 $1.99 last week Koffing 51/102 Common Base Set Unlimited Pokemon Lightly Played 51/102 $1.99 last week KOFFING 51/102 COMMON BASE SET UNLIMITED POKEMON LP 51/102 $1.59 last week Pokémon TCG Koffing Base Set Unlimited Common Card 51/102 051/102 $2.00 last week Koffing Base Set 051/102 LP-NM Pokemon card 051/102 $1.99 last week Pokemon Koffing 51/102 Common Base Set Unlimited LP 51/102 $3.37 last week English LP Koffing 051/102 BS Pokemon Base Set 051/102 $2.10 last week Koffing 51/102 Common Base Set Unlimited Pokemon Lightly Played 51/102 $1.65 last week Pokemon TCG Base Set Unlimited - Koffing 51/102 Common LP 51/102 $1.33 last week Pokémon TCG Koffing Base Set 51/102 Regular Common 051/102 $2.00 last week KOFFING 51/102 COMMON BASE SET UNLIMITED POKEMON NM 51/102 $2.30 last week Pokemon Koffing 51/102 Base Set Unlimited 51/102 $2.30 last week Pokemon Koffing 51/102 Base Set Unlimited 51/102 $2.00 2 weeks ago KOFFING 51/102 COMMON BASE SET UNLIMITED POKEMON NM 51/102 $2.00 2 weeks ago KOFFING 51/102 COMMON BASE SET UNLIMITED POKEMON NM/M 51/102 $3.00 2 weeks ago 1999 Wizards Pokemon Base Set Unlimited Koffing 51/102 Non-Holo EX+-NM 51/102 $1.99 2 weeks ago Koffing 51/102 Common Base Set Unlimited Pokemon Lightly Played 51/102 $1.98 2 weeks ago Koffing 51/102 Base Set Unlimited WOTC Vintage Pokemon 051/102 $1.79 2 weeks ago Pokemon TCG Base Set Unlimited - Koffing 51/102 Common 51/102 $0.97 2 weeks ago Koffing · Near Mint · Normal · English $0.47 2 weeks ago Koffing · Lightly Played · Normal · English $1.40 2 weeks ago Koffing - 51/102 - Common - Base Set - Pokemon Card - HP 51/102 $1.89 2 weeks ago Koffing 51/102 Common Base Set Unlimited Pokemon 1999 Lightly Played 51/102 $5.20 2 weeks ago Koffing 51/102 Holo/Prism Vintage Pokemon Base Set Vending Sticker Card $1.82 2 weeks ago Koffing 51/102 Base Set Unlimited Pokemon Lightly Played 51/102 $0.52 2 weeks ago Koffing · Lightly Played · Normal · English $0.47 2 weeks ago Koffing · Lightly Played · Normal · English $0.99 2 weeks ago Koffing 051/102 Base Set Regular Pokemon TCG 051/102 $1.99 3 weeks ago Koffing 51/102 Common Base Set Unlimited Pokemon Lightly Played 51/102 $3.70 3 weeks ago Koffing 51/102 Base Set 4th Print Pokemon Card 051/102 $1.23 3 weeks ago Koffing 51/102 MP Base Set Unlimited Common Pokemon 51/102 $1.94 3 weeks ago KOFFING 51/102 COMMON BASE SET UNLIMITED LP POKEMON 51/102 $1.99 3 weeks ago Koffing 51/102 Common Base Set Unlimited Pokemon LP 51/102 $1.71 3 weeks ago Pokemon Koffing 51/102 Base Set Unlimited 51/102 $1.79 3 weeks ago Koffing 51/102 Common Base Set Unlimited Pokemon Moderately Played 51/102 $1.50 3 weeks ago Koffing 51/102 Common Base Set Unlimited Pokemon Lightly Played 51/102 $2.69 3 weeks ago Koffing 51/102 Common Base Set Unlimited Pokemon Near Mint 51/102 $1.72 3 weeks ago Koffing - Pokémon TCG - Base Set - 51/102 - Regular Unlimited - Common - 🔟 051/102 $0.71 3 weeks ago Pokemon TCG-Koffing 051/102 Base Set Regular -Non Holo-Vintage-Lp 051/102 $2.00 3 weeks ago Koffing 51/102 Common Base Set Unlimited Pokemon Lightly Played 51/102 $1.49 4 weeks ago Koffing 51/102 Common Base Set Unlimited Pokemon Near Mint 51/102 $2.47 4 weeks ago Koffing 51/102 Common Base Set Unlimited Pokemon Near Mint 51/102

4 sales well outside the rest ($4.14, $3.37, $5.20). A median is barely moved by them, which is why it is the number shown.

Also held for this card: 1 CGC 7.5, 2 CGC 8, 1 CGC 8.5, 2 CGC 9, 1 CGC 9.5, 5 PSA 10, 4 PSA 7, 3 PSA 8, 11 PSA 9, 1 TAG 9. Priced separately, never mixed into this median.

Every sale is a completed listing. Click any line to open it.

Price by grade
9 from real sales
Grade PSA CGC BGS TAG SGC
10 Pristine
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10
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9.5
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9
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8.5
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8
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—
7.5
—
—
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7
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6.5
—
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—
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6
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5.5
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5
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—
—
4
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—
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—

Medians of completed sales — click one to see them. Arrows compare the last 90 days with the period before. last sold means one or two sales, so we show the most recent one rather than a median. est is an estimate we have not confirmed. pop is how many exist at that grade. How we price

Grade it? 28% of 1,425 PSA-graded copies came back a 10. Raw $1.79 → PSA 10 $139.90. Expected value after a $60 fee: +$3.02 per copy.
Run the full math → Is yours a 10? Pre-grade it, $3
Sales volume: Top 10% of cards
View eBay Listings Buy on TCGplayer Should I grade it?
Price History
Raw PSA 10
Graded by
PSA
1,425
graded
27.7%
395 in PSA 10
CGC
1,829
graded
14.5%
266 at 10 or better

PSA has given this card a ten 1.9× as often — 27.7% against 14.5%.

How CGC grades work
CGC grades above 9: Pristine sits above Gem Mint, Perfect above that.
Pristine 10 27 Gem Mint 10 239 9.5 78 9 392

These are two different pools of submissions, so this compares what each grader did, not what either would do with the same card.

Population Distribution

PSA 10 395
PSA 9 618
PSA 8 230
PSA 7 80
PSA 6 48
PSA 5 26
PSA 4 11
PSA 3 4
PSA 2 3
PSA 1 2

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More on this card: Compare graders PSA 10 price & pop Should you grade it? Every Koffing card Base Set PSA population