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 gradefantastic four (1961) #1 · grade 8Same title, issue and grade across sources — different physical copies. Not the same slab. For one specific slab's history use cert provenance.
2 sales only2 sales (universal label, last 10 yrs)two sales $60,000 / $74,000— not a market estimateMar 13, 2019 → Dec 11, 2019ComicConnect2 not counted