Harvey Comics. If I understand what I am reading correctly, then no one is 100 percent sure who the cover artist was here back in (the obviously pre-Comics Code) 1953. It is probably either Frank Frazetta, Sid Check or Lee Elias.
Eastern Color Printing.
Frazetta painted the artwork in 1963, if I am not mistaken. This particular reprint of the Burroughs classic was published by Ace Books in 1969.