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 gradedetective comics (1937) #211 · grade 7.5Same title, issue and grade across sources — different physical copies. Not the same slab. For one specific slab's history use cert provenance.
single sale1 sale (universal label, last 10 yrs)last sale $1,550 — not a market estimateMay 23, 2020 → May 23, 2020ComicConnect · CGC
May 23, 2020ComicConnectDETECTIVE COMICS (1937-2011; 2016-) #211CGC 7.5$1,550