This is Detective Comics 4, published by Mimosa (SA Magazine Co) +/- 1962-3.
It reprints the cover and all three stories from DC Comics' Detective Comics 283 (1960).
"The Phantom of Gotham City"
Roy Raymond: "Captives of the Moon"
Martian Manhunter: "The Amazing One-Man Crew"
32 pages, glossy cover and black-and-white newsprint interior pages.
These titles were printed in a smaller size (265x178mm) compared to the original DC Comics title.
The printing reproduction from the original was very good quality.
Here is the cover of issue 4 and DC Comics' original cover:
Mimosa Detective Comics Series