Jul 2, 2026 Ungraded $5 e b a y
Pokemon TCG - Koffing 51/102 Base Set Common Shadowless WOTC 1999 - EXC/NM 51/102 Jun 30, 2026 Ungraded $2 e b a y
Pokemon TCG Koffing 51/102 Shadowless Base Set Rare Common MP/HP 51/102 Jun 30, 2026 Ungraded $2 e b a y
Pokemon TCG Koffing 51/102 Shadowless Base Set Rare Common MP Jun 29, 2026 PSA 9 $21 e b a y
Pokémon Koffing 51/102 Base Set Shadowless Regular Common PSA 9 English Card 051/102 Jun 27, 2026 PSA 8 $24 e b a y
1999 Pokemon Base Set Koffing #51 Shadowless PSA 8 #51 Jun 26, 2026 Ungraded $2 e b a y
Pokemon TCG Base Set Shadowless Koffing 51/102 Common HP/DMG 51/102 Jun 26, 2026 Ungraded $8 e b a y
Koffing 51/102 Base Set (Shadowless) - Pokemon Card - NM Jun 25, 2026 Ungraded $7 e b a y
Koffing 51/102 Base Set Shadowless Common Vintage 1999 Pokemon TCG Card NM 051/102 Jun 25, 2026 Ungraded $2 e b a y
Koffing 51/102 Shadowless Base Set Unlimited NM Pokemon Card 051/102 Jun 22, 2026 Ungraded $3 e b a y
Pokémon TCG - KOFFING - SHADOWLESS - 51/102 - WOTC - BASE SET (1999) - NM 51/102 Jun 21, 2026 Ungraded $3 e b a y
Koffing MP 51/102 Shadowless Base Set Pokemon TCG Regular 051/102 Jun 20, 2026 Ungraded $4 e b a y
Pokemon TCG | Koffing 51/102 | Base Set Shadowless Common | Lightly Played 51/102 Jun 20, 2026 Ungraded $7 Koffing #51 Near Mint English Shadowless Jun 19, 2026 Ungraded $6 e b a y
Pokemon Card - Koffing Base Set (Shadowless) 51/102 Common 051/102 Jun 19, 2026 Ungraded $1 e b a y
Koffing 51/102 Base Set Shadowless Common Vintage 1999 Pokemon TCG Card NM 051/102 Jun 16, 2026 Ungraded $2 e b a y
Pokemon Base Set (Shadowless) #051/102 Koffing 051/102 Jun 16, 2026 Ungraded $2 e b a y
Koffing 51/102 Common Base Set Shadowless Pokemon Unlimited Moderately Played 51/102 Jun 15, 2026 CGC 9 $14 e b a y
1999 Pokémon Koffing Shadowless 51/102 CGC 9 Base Set WOTC 51/102 Jun 14, 2026 Ungraded $2 e b a y
Koffing 51/102 Base Set (Shadowless) Common Pokemon Card 051/102 Jun 11, 2026 PSA 8 $22 e b a y
1999 POKEMON GAME BASE SET KOFFING SHADOWLESS #51 PSA 8 #51 Jun 11, 2026 PSA 8 $16 e b a y
POKEMON BASE SET KOFFING 1999 GAME #51 SHADOWLESS PSA 8 #51 Jun 9, 2026 CGC 8 $19 e b a y
Pokemon Card Koffing 51/102 Shadowless Base Set 1999 CGC 8 NM/M Jun 8, 2026 Ungraded $4 e b a y
Pokemon Card - Koffing Base Set Shadowless 51/102 1999 Common Lightly Played 51/102 Jun 8, 2026 Ungraded $1 e b a y
Koffing 51/102 Shadowless Base Set Vintage 1999 Pokémon LP 51/102 Jun 8, 2026 Ungraded $8 e b a y
Pokemon TCG - Koffing 51/102 Base Set Common Shadowless WOTC 1999 - NM 51/102 Jun 7, 2026 PSA 9 $45 e b a y
1999 POKEMON BASE SET SHADOWLESS #51 KOFFING PSA 9 #51 May 31, 2026 Ungraded $1 e b a y
Koffing 51/102 Shadowless Base Set Unlimited NM Pokemon Card 051/102 May 29, 2026 Ungraded $5 e b a y
Pokémon TCG Shadowless Base Set 51/102 "Koffing" NM/VLP Card 51/102 May 29, 2026 Ungraded $2 e b a y
1999 Pokemon, Base Set Shadowless, #51/102 Koffing, Common 51/102 May 27, 2026 Ungraded $1 e b a y
Pokémon Koffing Base Set Unlimited 51/102 Basic 50 HP Shadowless Common English 051/102 May 25, 2026 Ungraded $0 e b a y
Pokémon TCG Koffing Base Set 51/102 Shadowless 51/102 May 25, 2026 Ungraded $21 e b a y
The Pokémon Company Pokémon Koffing Base Set Shadowless 051/102 Common 50HP 051/102 May 24, 2026 Ungraded $4 e b a y
Pokémon Card 1999 Base Set Koffing Shadowless 51/102 NM-M 51/102 May 22, 2026 PSA 9 $32 e b a y
Pokémon Koffing 51/102 Base Set Shadowless Regular Common PSA 9 English Card 051/102 May 20, 2026 Ungraded $4 e b a y
Koffing 51/102 shadowless base set pokemon NM May 20, 2026 Ungraded $3 e b a y
Koffing 51/102 - Pokemon Base Set Shadowless May 19, 2026 PSA 9 $47 e b a y
1999 POKEMON BASE SET SHADOWLESS #51 KOFFING PSA 9 #51 May 14, 2026 Ungraded $5 e b a y
Pokemon Card - Koffing Base Set (Shadowless) 51/102 Common 051/102 May 14, 2026 PSA 8 $16 e b a y
Pokémon TCG Koffing 1999 Base Set Shadowless PSA 8 51/102 English Common 051/102 May 13, 2026 Ungraded $2 e b a y
Koffing 051/102 Common Pokemon Base Set (Shadowless) Lightly played 051/102 May 13, 2026 CGC 9 $6 e b a y
1999 Pokémon Koffing Shadowless 51/102 CGC 9 Base Set WOTC 51/102 May 12, 2026 Ungraded $2 e b a y
Pokemon TCG VTG WOTC MP Koffing 051/102 Base Set (Shadowless) Regular 051/102 May 12, 2026 Ungraded $2 e b a y
KOFFING 51/102 COMMON BASE SET SHADOWLESS POKEMON MP 51/102 May 9, 2026 PSA 10 $341 e b a y
Pokemon Card Koffing 51/102 Base Set Shadowless PSA 10 GEM MINT #51 May 6, 2026 Ungraded $5 e b a y
Pokémon TCG - KOFFING - SHADOWLESS - 51/102 - WOTC - BASE SET (1999) - LP/NM 51/102 May 5, 2026 PSA 9 $50 e b a y
1999 POKEMON KOFFING #51/102 BASE SET SHADOWLESS PSA 9 MINT! 051/102 May 4, 2026 Ungraded $2 e b a y
KOFFING 51/102 COMMON BASE SET SHADOWLESS POKEMON MP 51/102 May 3, 2026 Ungraded $5 e b a y
1999 Pokemon Classic - Base Set Vintage Shadowless Non-Holo Koffing #51/102 NM 51/102 Apr 29, 2026 Ungraded $2 e b a y
KOFFING 51/102 COMMON BASE SET SHADOWLESS POKEMON MP 51/102 Apr 29, 2026 Ungraded $2 e b a y
KOFFING 51/102 COMMON BASE SET SHADOWLESS POKEMON MP 51/102 
Estimated market value — upgrade to Collector to unlock
