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Steve Borock, Primary Grader at Comics Guaranty Corporation, the first independent, impartial, expert third party grading service in comics, commented: "The World's Finest inventory of comic books and comic art comprises one of the largest and finest collections of fine comic material in the world, and its customer list is tops as well.
Numerical third party grading in coins has been a staple since its introduction in 1986 by another Collectors Universe subsidiary, Professional Coin Grading Service.
Several coin dealers who are familiar with third party grading but new to the comic book world entered the comic book market and made their presence known in part because of the introduction of third party grading.