Extra ammo carrying bag. Original, made during the WW2. Stamped ОТК№1, 1940, НКЛП (People’s Committee of Light Industry), weight 66 g.
According to the "Instructions for equipping a fighter of the Red Army" (Military Publishing of the USSR - 1941), the bag was supposed for shooters armed with a rifle 1891/30 or SVT (СВТ). Used to carry extra ammo. Suitable for mobile phone 15 x 8 cm or documents 16 x 8.5 cm.