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 gradebaseball's greatest heroes #1 · grade 9.8Same 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 5 yrs)last sale $51.00 — not a market estimateFeb 11, 2026 → Feb 11, 2026ComicConnect · CGC2 not counted
live noweBayBASEBALL'S GREATEST HEROES #1 CGC 9.8 DEC 1991 WHITE Pages Magnum MICKEY MANTLECGC 9.8 · Wlive — not a realized priceasking price $149.99
live noweBayBASEBALL'S GREATEST HEROES #1 CGC 9.8 Comics graded mickey mantleCGC 9.8multi-item lotasking price $129.99
Feb 11, 2026ComicConnectBASEBALL'S GREATEST HEROES #1 - CGC NM/M: 9.8CGC 9.8 · W$51.00