This is Detective Comics 2, published by Mimosa (SA Magazine Co) +/- 1959.
It reprints the cover of DC Comics' Detective Comics 270 (1959):
24 pages, full-colour, newsprint stock cover and interior pages.
These titles were printed in a smaller size (243x165mm) compared to the original DC Comics title.
The printing reproduction from the original was very good quality.
Here is the cover of issue 2 and DC Comics' original cover:
Mimosa Detective Comics Series