Flare Gun Ammunition Pouch
This German ersatz leather pouch is designed to carry the flare rounds for 27mm flare pistols such as the LP42. The manufacturer in this case is FSX41, which is code for the Albin Scholle Lederwarenfabrik in Zeitz. These pouches are identical to the postwar VOPOS ones so you have to be careful when you go hunting. All the ones I have seen to date seem to be manufactured by the same company and stamped FSX.