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 gradejustice league of america (1960) #21 · grade 9.4Same title, issue and grade across sources — different physical copies. Not the same slab. For one specific slab's history use cert provenance.
Under review — this key may be merging different things.
implausible span: grade medians run $72 → $70,500 (979× across 9 grades; up to 450× is plausible for that many) — check for a merged edition
members differ from "justice league of america #21": "justice league of america #21 dc 1963 classic crisis on earth one vf"
Numbers below are shown for audit only; verify each row on the house's page.
single sale1 sale (universal label, last 10 yrs)last sale $2,700 — not a market estimateAug 28, 2020 → Aug 28, 2020ComicConnect · CGC
Aug 28, 2020ComicConnectJUSTICE LEAGUE OF AMERICA (1960-87) #21CGC 9.4$2,700