Postwar, IMO BGS or early BW.
Reminds me of some postwar Franz Brehme, Walsrode products (shiny leather, hardware).
Could also be NVA, though.
Most flare pouches on the market are postwar ones, 'pimped' up with all kinds of markings. These markings are clearly fakes.
Mutato nomine de te fabula narratur (Horatius)