WOW!! I mean WOW!!
I wonder if this was the basis for the Gebirgsjäger jacket? It shares the same overall look, pockets, gathered waist, and button cuffs. In fact, if you did not say this was a TruVsu jacket for the general BW I would have predicted it was intended for GJ only.
I notice the production date is 1956. Was this meant to replace the Affenjacke?