Home / Base Set / Koffing [1st Edition] #51
Koffing [1st Edition] #51 Pokémon Card from Pokemon Base Set Set

Koffing [1st Edition] #51

Pokemon Base Set
Ungraded
$21.38
74 sales
Sales we held out are listed below, not counted here.
74 sold in 87 days · latest yesterday
$9.50 $43.42
$25.00 yesterday Pokemon Koffing 51/102 1st Edition Shadowless Base Set Card Unplayed New 51/102 $19.50 yesterday Koffing 51/102 1999 1st Edition Shadowless Pokemon Base Set Vintage MP 51/102 $12.00 2 days ago Koffing · Moderately Played · 1st Edition · English $21.50 3 days ago 1999 Pokemon KOFFING Base Set 1ST EDITION Shadowless Non Holo Card 51/102 WotC $34.43 3 days ago Pokemon Cards: Base Set 1st Edition Common: Koffing 51/102 $33.10 3 days ago Pokemon Cards: Base Set 1st Edition Common: Koffing 51/102 $28.00 5 days ago Koffing Base Set Shadowless 1st Edition 51/102 MP $15.00 5 days ago Koffing 51/102 Base Set 1st Edition Shadowless Pokemon 1999 WOTC LP $13.70 5 days ago Koffing · Lightly Played · 1st Edition · English $32.00 last week Pokemon Koffing 51/102 Base Set 1st Edition Shadowless 1999 WOTC Card $23.95 last week Pokemon TCG Base Set 1st Edition 51/102 Koffing $24.25 last week 1999 Pokemon Base Set 1st Ed Koffing 51/102 Common 50 HP 051/102 $24.00 last week KOFFING Pokemon Card - WOTC - 1st Edition - Base Set - Shadowless 51/102 NM (2) $15.00 last week 1999 Pokemon Koffing Base Set 1st Edition Shadowless 051/102 English (HP) 051/102 $40.00 last week Koffing 51/102 Common Base Set Shadowless Pokemon 1st Edition Near Mint $23.00 last week The Pokémon Company Pokémon TCG Koffing 1st Ed Base Set Shadowless 051/102 051/102 $19.95 last week Koffing LP 51/102 - 1st Edition Base Set Shadowless - Pokemon 1999 (E) 51/102 $17.74 2 weeks ago Koffing · Lightly Played · 1st Edition · English $18.75 2 weeks ago Koffing · Lightly Played · 1st Edition · English $17.00 2 weeks ago Pokemon TCG Koffing 51/102 Base Set 1st Edition Shadowless English 1999 51/102 $15.00 3 weeks ago Koffing (1st Edition) Pokemon Base Set (Shadowless) BSS #051/102 1st Edition 051/102 $17.35 3 weeks ago Pokemon Koffing 1st Edition Base Set 51/102 $28.45 3 weeks ago 1999 Koffing 51/102 1st Edition Base Set Shadowless Pokemon Mint Front/LP Back 51/102 $28.45 3 weeks ago 1999 Koffing 51/102 1st Edition Base Set Shadowless Pokemon Mint Front/LP Back 51/102 $35.00 4 weeks ago 1999 Pokemon Base Set Koffing 51/102 1st Edition Shadowless Clean Raw NM 51/102 $19.99 4 weeks ago Koffing 51/102 1st Edition Shadowless 1999 Pokemon Base Set Vintage MP 51/102 $15.50 4 weeks ago Pokemon TCG WOTC Koffing 1st Edition - Base Set - Shadowless - 51/102 $21.00 4 weeks ago Pokemon TCG: Koffing - 51/102 1st Edition Shadowless Base Set - Nm Nice C pics $19.99 5 weeks ago Pokemon TCG: Base Set - Koffing 51/102 1st Edition Shadowless WOTC Vintage LP $39.71 5 weeks ago Pokemon Koffing 51/102 Base Set Common 1st Edition Moderately Played $24.59 5 weeks ago Koffing 1st Edition Shadowless Base Set 51/102 LP $11.92 5 weeks ago Pokemon Card - Koffing Base Set Shadowless 51/102 1st Edition LP 51/102 $35.00 5 weeks ago Koffing 051/102 Base Set (Shadowless) 1st Edition Regular NM+ GRADEABLE Pokemon 051/102 $14.99 5 weeks ago Koffing MP 51/102 - 1st Edition Base Set Shadowless - Pokemon 1999 51/102 $18.00 6 weeks ago Pokemon TCG: Koffing - 51/102 1st Edition Shadowless Base Set - LP $31.14 6 weeks ago Pokemon Cards: Base Set 1st Edition Common: Koffing 51/102 #51 $21.25 6 weeks ago KOFFING 1999 POKEMON BASE SET 1ST EDITION 51/102 SHADOWLESS Q1887 51/102 $19.90 6 weeks ago Koffing 51/102 - 1st Edition Base Set Shadowless Pokemon 1999 MP $37.18 6 weeks ago Koffing SHADOWLESS 1st EDITION Base Set Pokemon Card 51/102 | Good Condition $29.99 6 weeks ago Pokémon TCG Koffing Base Set 51/102 Regular 1st Edition Card $20.00 6 weeks ago Koffing 51/102 Common Base Set Shadowless Pokemon 1st Edition Lightly Played $9.50 7 weeks ago Koffing 51/102 Base Set 1st Edition WOTC Wizards of the Coast Pokemon Vintage 51/102 $15.00 7 weeks ago Koffing MP 51/102 - 1st Edition Base Set Shadowless - Pokemon 1999 (B) 51/102 $17.99 7 weeks ago KOFFING 1999 POKEMON BASE SET 1ST EDITION SHADOWLESS 51/102 - NM/LP $43.42 7 weeks ago Pokemon Cards Koffing 1st edition Base Set Shadowless 51/102 NM WOTC $12.50 7 weeks ago 1999 VINTAGE WOTC POKEMON KOFFING - FIRST EDITION BASE SET SHADOWLESS 051/102 $29.99 7 weeks ago Pokemon Card - Koffing Base Set Shadowless 51/102 1st Edition Common $10.73 7 weeks ago Pokémon TCG Koffing Shadowless 1st Edition Base Set Regular 51/102 HP $24.00 8 weeks ago Pokemon TCG WOTC Koffing 1st Edition - Base Set - Shadowless - 51/102 LP $37.89 8 weeks ago Pokémon TCG Koffing Shadowless 1st Edition Base Set Regular 51/102 MP $21.50 8 weeks ago Vintage 1999 wotc Pokemon Cards Base Set 1st Edition Common: Koffing 51/102 #51 $43.32 8 weeks ago Pokemon Cards: Base Set 1st Edition Common: Koffing 51/102 #51 $12.99 8 weeks ago Koffing 51/102 PL | Base Set | 1ST EDITION | Vintage WOTC Pokemon TCG $39.88 2 months ago KOFFING 1st EDITION POKÉMON 51/102 1999 BASE SET NORMAL ENGLISH $10.52 2 months ago Koffing 51/102 Base Set (Shadowless) Pokemon HP 1st Edition $29.99 2 months ago Pokemon Card - Koffing Base Set (Shadowless) 51/102 Common 1st Edition $15.00 2 months ago Pokemon TCG: Koffing - 51/102 1st Edition Shadowless Base Set MP+/LP- 51/102 $28.49 2 months ago KOFFING Pokemon Card - WOTC - 1st Edition - Base Set - Shadowless 51/102 NM (2) $23.84 2 months ago Pokemon Cards Koffing 1st Edition Base Set Shadowless Card 51/102 $29.99 2 months ago Pokemon Card - Koffing Base Set (Shadowless) 51/102 Common 1st Edition $19.99 2 months ago KOFFING-Pokemon-Mitsuhiro Arita 51/102 BSS Base Set Shadowless - 1st Edition MP 51/102 $42.21 2 months ago Koffing SHADOWLESS 1st EDITION Base Set Pokemon Card 51/102 | Good Condition $18.00 2 months ago Koffing 51/102 Common Base Set Shadowless Pokemon 1st Edition Moderately Played 51/102 $29.66 2 months ago Koffing - 51/102 - 1st Edition Shadowless - Base Set - Pokemon TCG Card $17.00 2 months ago Koffing MP 51/102 - 1st Edition Base Set Shadowless - Pokemon 1999 (A) 51/102 $13.00 2 months ago Koffing 51/102 Base Set Shadowless Common 1st Edition 1999 $29.32 2 months ago Pokemon Cards: Base Set 1st Edition Common: Koffing 51/102 #51 $14.94 2 months ago Koffing 51/102 Common Base Set Shadowless Pokemon 1st Edition Lightly Played 51/102 $15.01 2 months ago Koffing 51/102 Common Base Set Shadowless Pokemon 1st Edition Lightly Played 51/102 $20.50 2 months ago Vintage LP 1999 wotc Pokemon Cards Base Set 1st Edition Common: Koffing 51/102 #51 $19.99 2 months ago Koffing 51/102 Base Set Shadowless Common 1st Edition 1999 LP/NM $29.99 2 months ago Koffing - 1st Edition Shadowless - 51/102 Base Set - Pokémon TCG - 1999 51/102 $25.00 2 months ago Pokémon Koffing #51/102 Shadowless 1st Edition 1999 Base Set $29.00 2 months ago 1999 Pokemon KOFFING Base Set 1ST EDITION Shadowless Non Holo 51/102 NM+ MINT

Also held for this card: 1 BGS 9, 2 CGC 10, 1 CGC 5, 2 CGC 7.5, 3 CGC 8.5, 4 CGC 9, 1 CGC 9.5, 9 PSA 10, 1 PSA 5, 1 PSA 6, 4 PSA 7, 14 PSA 8, 16 PSA 9. Priced separately, never mixed into this median.

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

Price by grade
11 from real sales · 1 est
Grade PSA CGC BGS SGC
10
—
$419.00
est
9.5
—
—
9
—
8.5
—
—
—
8
—
—
—
7.5
—
—
—
7
—
—
6
—
—
—
5.5
—
—
—
5
—
—
4
—
—
—
3
—
—
—

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? 22% of 2,806 PSA-graded copies came back a 10. Raw $21.38 → PSA 10 $711.00. Expected value after a $25 fee: +$189.47 per copy.
Run the full math →
Sales volume: Top 10% of cards
View eBay Listings Buy on TCGplayer Should I grade it?
Price History
Raw PSA 10
Graded by
PSA
2,806
graded
22.5%
631 in PSA 10
CGC
594
graded
6.6%
39 at 10 or better

PSA has given this card a ten 3.4× as often — 22.5% against 6.6%.

How CGC grades work
CGC grades above 9: Pristine sits above Gem Mint, Perfect above that.
Pristine 10 1 Gem Mint 10 38 9.5 20 9 149

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 10 631
PSA 9 1103
PSA 8 573
PSA 7 260
PSA 6 112
PSA 5 60
PSA 4 24
PSA 3 13
PSA 2 6
PSA 1 8

Best copy right now

checked 12 Oct 14:35 UTC · title and photo verified, priced against our RAW median
$19.99 7% under Ungraded
our median $21.50 · free shipping · seller 99.9%
Koffing - 1st Edition - 51/102 Base Set - Pokémon TCG - 1999
$19.99 7% under Ungraded
our median $21.50 · free shipping · seller 98.1%
Wotc Pokémon TCG Koffing 51/102 Base Set Shadowless 1st Ed Regular Eng
$20.00 7% under Ungraded
our median $21.50 · free shipping · seller 66.7%
Pokémon TCG Koffing Base Set Shadowless 1st Edition #51

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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