See also Batman, Bonanza, Flash Gordon, Mandrake the Magician, Man from UNCLE, Phantom, Superman World Adventure Library.
64 pages Digest (pocket) size. Black and white comic strips. #3 is tough to find! I don't think #4 exists as is claimed by some.
Note: some PR issues may have no value. Selected issues in FN, VF or VF/NM may not exist in some titles.