‘Superman #1’ copy found in attic becomes most expensive comic ever sold CTV NewsSuperman edition found in mum’s attic is most valuable comic ever at $9.12m BBCUp, up and away: Superman comic found in attic sells for $9.12m to become most expensive ever sold The GuardianSuperman Comic Sets Auction Record, Selling for $9.12 Million The New York Times‘Superman’ No. 1 from 1939 auctioned for a record-breaking $9.12M Yahoo News Canada
