3rd Reich Löschsand für Luftschutz Papiertüte

In a very good condition paper bags loose sand for the air raid protections service. These bags were used to put out fires cause by incendiaries. The paper bag has a line to which it needed to be filled with dry sand. It says 'Trocken einfüllen vor Feuchtigkeit Schützen. Verwending für Luftschutzwecke mit Zustimmung der Reichsanstalt der Luftwaffe für Luftschutz (Used for air raid protection purposes with the approval of the Reich Air Force Agency for Air Raid Protection.). Maker marked ADB 42 (42 is most likely the year 1942)