![Koffing [1st Edition] #1 Pokémon card from Japanese Expedition Expansion Pack](https://storage.googleapis.com/images.pricecharting.com/c869e16b971394d2b37585e6eee4097d460fca06b3e3a1fbfcbffe522ddb0289/240.jpg)
Japanese
Koffing [1st Edition] 1/128
Expedition Expansion Pack· Language: Japanese
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Koffing [1st Edition] #1 from Japanese Expedition Expansion Pack currently trades at $4.03 raw, with PSA 10 copies reaching $131.50 — a 32.6x grade premium.
Current Prices (USD)
Ungraded
PSA 7
PSA 8
PSA 9
PSA 10
ACE 10
BGS 10 Black
CGC 10 Pristine
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Raw Price Trend
7d
—
30d
—
90d
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180d
+80.7%
1y
+56.2%
2y
+12.9%
5y
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Quick price facts
Koffing [1st Edition] 1/128 from Expedition Expansion Pack has a current raw market value of $4.03.
- Current raw value
- $4.03
- PSA 9 value
- $17.50
- PSA 10 value
- $132
- PSA 10 premium vs raw
- 32.6× raw
Collector Intel
32.6x
Raw → PSA 10
High-risk grade
4.3x
Raw → PSA 9
Grade multiplier
Calculated from price history, PSA population data, and market trends. Not financial advice.
Grading Calculator
Based on PSA Standard tier (~$25 USD). Assumes a perfect PSA 10 result — actual outcome depends on card condition.
⚠️ High-variance grade. PSA 10 is 33x the raw price. The expected value accounts for the realistic probability.
$4
Buy Raw
~$25
Grading Fee
PSA Standard
$132
PSA 10 Value
+$102
Best Case (PSA 10)
if you pull a 10
Grade Multiples vs Raw
PSA 9$184.3x raw
PSA 10$13232.6x raw