Title comps
Realized prices for the same title, issue and grade across houses — different physical copies. For one specific slab, use cert provenance.
Same book, same gradecard base koffing pokemon set #51 · grade 10Same card, set and grade across sources — different physical copies. Not the same slab. For one specific slab's history use cert provenance.
single sale1 sale (universal label, last 5 yrs, CGC)last sale $21.00 — not a market estimateJul 6, 2026 → Jul 6, 2026Fanatics Collect · CGC1 not counted
live noweBay1999 POKEMON BASE SET UNLIMITED Koffing #51 PSA 10unlimitedPSA 10live — not a realized priceasking price $299.99Jul 6, 2026Fanatics Collect1999 Pokemon Base Set Koffing #51 CGC 10 GEM MINTedition unstated (pooled with unlimited)CGC 10$21.00