Realized prices for the same title, issue and grade across houses — different physical copies. For one specific slab, use cert provenance.
LotScan — The search engine for auctions
Same book, same grade2025 -003 1 6 assort auth edward newgate one pcc piece vol #st22 japaneseSame title, issue and grade across sources — different physical copies. Not the same slab. For one specific slab's history use cert provenance.