Label too crooked and low-resolution or is this possibly legit? What about the materials, seam style, and stitching?
It's in a collection with a photo, a wartime pistol, and what I suspect is a repro P38 hardcase.

armband_cropped.jpg (24.23 KB, 70 downloads)
lables resize 1.jpg (251.2 KB, 70 downloads)