I saw one last month at a shoot. French made, it is a 9mm Parabellum SMG that folds up into a 17" long package. it was expensive to make because of a lot of machining, and was only produced from 49 through the mid-fifties. It was made for para toopers and Clandestine purposes. This one was semi-auto only, but it was originally FA. It was in great shape and had what looked to be Bakelite grips. I had never heard of them, but it was a cool look into the past. It had about a 10-11" barrel that telescoped into itself, the magwell with mag in it, folded toward the front, and the stock folded up and a clasp engaged a catch in the magwell when all folded up. It was pretty hefty at about 7 1/2 lbs, and had a cool looking sling on it. I don't know how reliable they were, but the cool factor was way up there. It was hard for me to believe that the French had come up with something like that, but I guess they were more militant during the late forties.