This is World's Finest Comics 4, published by Mimosa (SA Magazine Co) +/- 1963-1964.
It reprints the cover and both stories from DC Comics' World's Finest Comics 135 (1963):
"The Menace of the Future Man"
Aquaman: "The Creatures that conquered Aquaman"
Also Reprinted is this story from Action Comics 241 (1958):
Congo Bill: "The Great Jungle Hoax"
32 pages, glossy colour cover, black and white newsprint interior.
Here is the cover of issue 4 and DC Comics' original cover: