Realized prices for the same title, issue and grade across houses — different physical copies. For one specific slab, use cert provenance.
Same book, same gradebatman and the outsiders (1983) #1Same 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 $59.17 / $190.00— not a market estimateSep 12, 2017 → Dec 16, 2020ComicConnect3 not counted