Morning thanks for all the great info. Work has been a b#$&h it week and I haven’t had time to do much. I’ll try and reply to all the pm shortly. I’m going to try and give the best history of the gun I know. My grandfather was a engineer stationed in Landstuhl Germany from sometime in 1948 to 1953. He never really talked about his service to our family, but we think he was working on infrastructure for the airbase and Landstuhl Regional Medical Center. During that time my grandmother moved overseas to be with him and my father was born in Landstuhl. As of right now we do not any of the guns history in Germany, but both saved ration card to acquire many different antiques. When they returned home life was not easy for them. The few stories we have regarding the gun are, the wood scratches in the stock where from my grandfather mounting the gun to the front of a moped and driving around his farm fields shooting rabbits. He never talked about its history, how he acquired it, or why he had it. He passed away in 1991, and when he did my then step grandmother called my uncle and father told them if they didn’t pick up the guns and other war related items they where going in the trash. My uncle wasn’t really interested, so my dad went picked them up. Looking back now it was crazy risky and lucky he went to get the guns. He drove through 6 states with a unregistered (to him) NFA item. Once we physically acquired the guns we found his paperwork registering the Thompson. With worked with the state police and a local firearms historian the legally transfer the gun. This was a huge undertaking because we had no idea what we had to do or how to do any of the transfer. When working with the historian he couldn’t find anything on the Thompson, and because of the fore grip he concluded it most have been acquired from a dealer. The Paperwork disputed that but we were unsure. Once the transfer was completed we shot the gun once, being invited to Hiram Maxim machine gun shoot in Dover-foxcroft Maine. There we shot the Thompson for the first time. It’s been in the safe since then really, coming out getting cleaned and right back in. I moved to Indiana in 2008 and transfered the gun to my family about 3 months ago. So that is full of holes and gaps I’m working on his latters home during the post war and trying to find any information. I’ll take a few pics of the sling today and post them.