Jun 29, 2026 CGC 9.5 $100 e b a y
CGC 9.5 MINT+ Koffing 51/102 1st Edition Shadowless Base Set Pokemon Card 51/102 Jun 29, 2026 CGC 9 $65 e b a y
Koffing #51 1st Edition Base Set 1999 Pokémon Game CGC 9 🍃 51/102 Jun 28, 2026 Ungraded $30 e b a y
Pokemon Cards: Base Set 1st Edition Common: Koffing 51/102 #51 Jun 28, 2026 PSA 9 $80 e b a y
Pokemon Koffing Base Set 51/102 1st Edition PSA 9 51/102 Jun 28, 2026 PSA 8 $41 e b a y
Pokemon Koffing Base Set 51/102 1st Edition PSA 8 51/102 Jun 26, 2026 Ungraded $25 e b a y
Pokemon Card - Koffing Base Set (Shadowless) 51/102 Common 1st Edition 51/102 Jun 26, 2026 Ungraded $30 e b a y
Pokémon Koffing Base Set Shadowless 1st Edition Basic Common 51/102 50 HP 1999 051/102 Jun 24, 2026 BGS 9.5 $65 e b a y
Pokemon Koffing 1st Edition Base Set Shadowless BGS 9.5 051/102 Jun 23, 2026 PSA 9 $110 e b a y
1999 POKEMON BASE SET 1ST EDITION #51 KOFFING PSA 9 #51 Jun 22, 2026 Ungraded $20 e b a y
Pokemon TCG: Koffing - 51/102 1st Edition Shadowless Base Set - MP+ 51/102 Jun 22, 2026 Ungraded $18 e b a y
Pokemon Koffing 1st Edition Base Set Shadowless 51/102- NM/LP 51/102 Jun 22, 2026 PSA 8 $60 e b a y
Koffing #51 Shadowless 1st Edition Base Set PSA 8 Pokemon 1999 #82 Jun 21, 2026 Ungraded $42 e b a y
Pokemon Koffing Card Shadowless 1st Edition, Base Set, (N/M) 51/102 051/102 Jun 19, 2026 CGC 9 $70 e b a y
CGC 9 MINT Koffing 51/102 1st Edition Shadowless Base Set Pokemon Card 51/102 Jun 18, 2026 Ungraded $32 Koffing #51 Near Mint English 1st Edition Jun 14, 2026 Ungraded $27 e b a y
1999 POKEMON BASE SET 1ST EDITION SHADOWLESS #51/102 KOFFING 51/102 Jun 11, 2026 PSA 6 $31 e b a y
POKEMON BASE SET SHADOWLESS KOFFING 1999 GAME 1ST EDITION #51 PSA 6 #51 Jun 11, 2026 Ungraded $18 e b a y
Pokemon Koffing 1st Edition Base Set Shadowless 51/102 LP 51/102 Jun 10, 2026 Ungraded $17 e b a y
Pokemon Koffing 51/102 1st Edition Shadowless Common MP Base Set WOTC 51/102 Jun 8, 2026 Ungraded $19 e b a y
1999 Pokémon Base Set #51 Koffing 1st Edition Shadowless 051/102 Jun 6, 2026 Ungraded $36 e b a y
Koffing 51/102 1st Edition Common Base Set Shadowless Pokemon English NM 51/102 Jun 5, 2026 PSA 10 $880 e b a y
1999 Koffing 1st Edition #51 PSA 10 GEM MINT Base Set Shadowless Pokemon #51 Jun 4, 2026 Ungraded $27 e b a y
1999 pokemon base set 1st edition koffing Jun 4, 2026 PSA 7 $21 e b a y
1999 POKEMON GAME BASE SET SHADOWLESS KOFFING 1ST EDITION #51 PSA 7 #51 Jun 3, 2026 PSA 9 $38 e b a y
Koffing #51 1st Edition Base Set 1999 Pokémon Game PSA 9 🍃 58/82 Jun 1, 2026 PSA 9 $59 e b a y
Pokemon Koffing Base Set Shadowless 1st Edition #51 PSA 9 Mint May 31, 2026 Ungraded $31 e b a y
Pokemon Cards: Base Set 1st Edition Common: Koffing 51/102 #51 May 31, 2026 PSA 7 $70 e b a y
1999 POKEMON BASE SET 1ST EDITION #51 KOFFING PSA 7 #51 May 30, 2026 Ungraded $35 e b a y
Pokémon Koffing Base Set Shadowless 1st Edition Basic Common 051/102 50 HP 1999 051/102 May 30, 2026 Ungraded $17 e b a y
Pokémon TCG Koffing Base Set, 1st Ed Unlimited Common Card 51/102 Vintage May 27, 2026 PSA 9 $100 e b a y
Pokémon PSA 9 1st Edition Koffing 051/102 Base Set (Shadowless) 051/102 May 26, 2026 Ungraded $2 e b a y
Base Set 51/102 Koffing 1st Edition Pokemon Card 051/102 May 25, 2026 Ungraded $15 e b a y
Koffing Base Set 1st Edition & Shadowless 51/102 Pokemon TCG #51 May 25, 2026 Ungraded $42 e b a y
1999 Pokémon Koffing 051/102 Base Set (Shadowless) Regular 1st Edition PSA 051/102 May 24, 2026 Ungraded $20 e b a y
Koffing 51/102 - 1st Edition Base Set Shadowless - Pokemon 1999 (A) 51/102 May 24, 2026 Ungraded $20 e b a y
Pokemon 1st Edition 'KOFFING' Base Set SHADOWLESS 51/102 46/102 May 24, 2026 Ungraded $18 e b a y
1999 POKEMON BASE SET 1ST EDITION SHADOWLESS #51/102 KOFFING 51/102 May 24, 2026 PSA 9 $79 e b a y
1999 POKEMON BASE SET 1ST EDITION #51 KOFFING PSA 9 #51 May 23, 2026 Ungraded $34 e b a y
Pokemon Cards Koffing 51/102 1st Edition Base Set Shadowless Common NM 51/102 May 23, 2026 PSA 8 $48 e b a y
Pokemon 1st edition Base Set Koffing PSA 8 #51 May 23, 2026 PSA 8 $50 e b a y
1999 POKEMON BASE SET 1ST EDITION #51 KOFFING PSA 8 #51 May 22, 2026 Ungraded $20 e b a y
Pokémon TCG Koffing 051/102 Base Set Shadowless 1st Edition Common 50HP 051/102 May 21, 2026 Ungraded $12 e b a y
Koffing 51/102 1st Edition Common Base Set Shadowless Pokemon English HP 51/102 May 18, 2026 Ungraded $7 e b a y
Pokemon 1st Edition 'KOFFING' Base Set SHADOWLESS 51/102 46/102 May 18, 2026 Ungraded $40 e b a y
1999 Pokémon Koffing 051/102 Base Set (Shadowless) Regular 1st edition PSA 051/102 May 18, 2026 CGC 8.5 $60 e b a y
CGC 8.5 Koffing 51/102 Gray Stamp 1st Edition Shadowless Base Set Pokemon Card 51/102 May 18, 2026 CGC 8.5 $50 e b a y
CGC 8.5 NM/MINT+ Koffing 51/102 1st Edition Shadowless Base Set Pokemon Card 51/102 May 17, 2026 Ungraded $15 e b a y
Pokemon Card - Koffing Shadowless 1st Edition Base Set Common 51/102 - LP+ May 17, 2026 Ungraded $53 e b a y
Pokemon Cards: Base Set 1st Edition Common: Koffing 51/102 #51 May 17, 2026 CGC 8.5 $41 e b a y
Pokemon Koffing Base Set Shadowless 1st Edition #51 CGC 8.5 
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