Realized prices for the same title, issue and grade across houses — different physical copies. For one specific slab, use cert provenance.
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Same book, same grade1999 bryant kobe materials spx winning #wm4 · grade 8Same title, issue and grade across sources — different physical copies. Not the same slab. For one specific slab's history use cert provenance.
Aug 6, 2026Alt1999 Spx Winning Materials Kobe Bryant #WM4 BGS 8edition unstated (pooled with unlimited)BGS 8Alt shows auction results with the 20% buyer's premium included — hammer not separable until verified at a close; shown, not counted—