Home / Base Set / Koffing [Shadowless] #51
Koffing [Shadowless] #51 Pokémon Card from Pokemon Base Set Set

Koffing [Shadowless] #51

Pokemon Base Set
Ungraded
$2.99
32 sales
Sales we held out are listed below, not counted here.
32 sold in 81 days · latest last week
$0.70 $17.00
$1.50 last week Pokémon Koffing Base Set 51/102 Regular Shadowless Common Unlimited Vintage 1999 051/102 $4.50 last week Koffing 51/102 Base Set Unlimited Shadowless Common Pokemon MP V4 051/102 $5.49 last week Koffing 51/102 Common Base Set Shadowless Pokemon Unlimited MP 51/102 $8.44 last week Koffing 51 Unlimited 102 C Base Set Shadowless Pokemon Lightly Played 51/102 $0.70 last week Koffing 51/102 - Base Set Shadowless 1999 Pokemon Card $4.49 2 weeks ago KOFFING 1999 Pokemon Base Set SHADOWLESS Common POKÉMON 51/102 #102 $5.96 3 weeks ago Pokemon TCG 1999 WOTC Shadowless Base Set Koffing 051/102 - Near Mint 051/102 $1.76 3 weeks ago Koffing 51/102 Pokemon TCG Base Set (Shadowless) HP 051/102 $2.76 3 weeks ago 1999 Pokémon TCG - Koffing - Base Set - Shadowless - 51/102 51/102 $1.99 4 weeks ago Pokemon TCG Koffing Base Set Shadowless 51/102 MP 51/102 $9.99 4 weeks ago Koffing 51/102 Base Set Shadowless Pokemon 51/102 $2.99 4 weeks ago Koffing 51/102 Shadowless Base Set Pokemon Card 1999 - LP $2.77 4 weeks ago Pokemon TCG Koffing Base Set (Shadowless) Common 051/102 Unlimited 051/102 $1.50 4 weeks ago Pokémon TCG Koffing Base Set 51/102 Regular Shadowless Common LP Ungraded 051/102 $5.95 5 weeks ago Shadowless Koffing 51/102 Base Set - Common Pokemon Card - NM/Mint $17.00 6 weeks ago Pokemon TCG Koffing 051/102 Base Set (Shadowless) Regular 051/102 $4.00 6 weeks ago Pokemon Shadowless Koffing, Base Set 51/102, Nonholo, NM $2.99 6 weeks ago Koffing 51/102 Shadowless Base Set Unlimited LP Pokemon Card - PTS 051/102 $2.00 6 weeks ago Koffing 51/102 Common Base Set Shadowless Pokemon Unlimited Lightly Played 51/102 $7.50 6 weeks ago Koffing 51/102 Shadowless Base Set Pokemon Card 1999 51/102 $2.00 7 weeks ago Koffing 51/102 Shadowless Base Set Pokemon Card 1999 MP 51/102 $2.99 7 weeks ago Koffing 51/102 Unlimited Common Base Set Shadowless Pokemon Cards 51/102 $4.50 8 weeks ago Koffing - 51/102 - Shadowless - Base Set Pokemon TCG - WOTC 51/102 $3.25 8 weeks ago Koffing - 51/102 - Base Set (Shadowless) - Vintage WOTC Era Pokemon Card_100 51/102 $1.32 2 months ago Pokemon TCG | Koffing 51/102 | Base Set Shadowless Common | Lightly Played 51/102 $2.80 2 months ago 1999 Pokemon Base Set Shadowless Koffing #51/102 $2.00 2 months ago 1999 Pokémon Base Set Shadowless KOFFING 51/102 LP 51/102 $1.00 2 months ago **Shadowless** Koffing 51/102 Pokemon Base Set 1999 WotC 51/102 $2.24 2 months ago Koffing 51/102 Unlimited Common Base Set Shadowless Pokemon English MP 51/102 $1.79 2 months ago 1999 Pokemon, Base Set Shadowless, #51/102 Koffing, Common (b) 51/102 $8.00 2 months ago Koffing 51/102 Shadowless Base Set Pokemon Card 1999 51/102 $3.55 2 months ago Pokemon TCG Koffing #51 Shadowless Base Set Common Grass LP #51

2 sales well outside the rest ($9.99, $17.00). A median is barely moved by them, which is why it is the number shown.

Also held for this card: 1 PSA 5, 2 PSA 7, 2 PSA 8, 2 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
6 from real sales · 1 est
Grade PSA CGC BGS TAG SGC
10
$440.00
est
—
—
9.5
—
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—
—
9
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—
8.5
—
—
—
—
8
—
—
7.5
—
—
—
—
7
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—
—
—
6
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—
—
5
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—
—
4
—
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—
—
3
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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? 20% of 807 PSA-graded copies came back a 10. Raw $2.99 → PSA 10 $233.50. Expected value after a $60 fee: +$21.23 per copy.
Run the full math → Is yours a 10? Pre-grade it, $3
Sales volume: Top 40% of cards
View eBay Listings Buy on TCGplayer Should I grade it?
Price History
Raw PSA 10
Graded by
PSA
807
graded
20.0%
161 in PSA 10
CGC
488
graded
7.2%
35 at 10 or better

PSA has given this card a ten 2.8× as often — 20.0% against 7.2%.

How CGC grades work
CGC grades above 9: Pristine sits above Gem Mint, Perfect above that.
Pristine 10 1 Gem Mint 10 34 9.5 9 9 90

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 10 161
PSA 9 356
PSA 8 123
PSA 7 62
PSA 6 38
PSA 5 39
PSA 4 18
PSA 3 4
PSA 2 2
PSA 1 1

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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