PSA 10 commentary
The TCGBerg fair value of a PSA 10 Koffing - Reverse Holo is $243 as of 2026-06-27. 12 copies have been graded at this level. This valuation carries medium confidence (a confidence score of 46). Over the past 30 days the TCGBerg fair value has risen 0.5%. The most recent recorded sale was $285 on 2025-10-10.















































