This is one of the earliest South African reprint comics. Zebra Publications were the first to reprint DC Comics in 1954.
This is Zebra Publications World's Finest Comics 1 - the cover is taken from DC
Comics' World's Finest Comics 55 (1951).
It reprints these two stories from DC Comics' World's Finest Comics 37 (1948):
Superman: "The Superman Story"
Boy Commandos: "The Killer in the Iron Machine"
Colour cover, Black-and-White interior, 24 pages.
Smaller than the original comic size - dimensions 176mm x 244mm.
Here is the cover and DC Comics' original cover: