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PSA 10: 1 sale, last 45 days · Oct 22, 2026 · checked Oct 27, 2026
Grade 9: No recent PSA 9 sales. PriceCharting Grade 9 guide, mixing PSA, CGC, BGS, SGC and TAG 9s.
Grade 7 and Grade 8 are PriceCharting guides across all graders (PSA, CGC, BGS, SGC, TAG).
A PSA 10 Professor's Research (Promo #SWSH178) is currently shown at $64.00, the only PSA 10 sale in the last 45 days (Oct 22, 2026).
| Date | Listing | Sale |
|---|---|---|
| Oct 22, 2026 | 2021 Pokemon Go V Battle Decks Professor's Research Holo #SWSH178 PSA 10 | $64.00 |