A leading voice in the world of comic book collection was hit with a $10 million verdict Tuesday for falsely accusing a pair of sellers of using faulty techniques to restore high-value comics.

In a determination that included $5 million in punitive damages, a Philadelphia jury found that Certified Guaranty Co. LLC—a company that assesses and grades the quality of collectible comic books—knowingly published defamatory statements about the plaintiffs’ work.

Lane Jubb Lane R. Jubb, Jr. of The Beasley Firm. Courtesy photo