WW2 German M40 Bread Bag, RBNr. Marked

World War Two German M40 Bread Bag (Brotbeutel). This bread bag is in excellent condition and has little-to-no visible wear. The leather components are in a similarly excellent condition and are still very flexible and serviceable. The back of the middle hooked strap is RBNr. (Reichsbetriebsnummer) marked, though most of the number is faded and illegible.