Classics Illustrated #57

This variant (HRN 167, Classics Illustrated Junior HRN 576) exists with at least two sub-variants. That with an indicia copyright date of September 1964 features an Orbitop promo on the inside front cover. That with an indicia copyright date of October 1965 features a promo for Ballantine Books pocket paperbacks of Edgar Rice Burroughs novels. Apart from promos and indicia (all on the inside front covers), there are no other changes. Both sub-variants were printed in the U.S.A.