I saw this as well. This is what I noticed. The stamp in the shirt has a 1943 date. The straps are pre 1938. They do match and appear to be slipped on. Only pre 1938 straps I've seen that are slip on are modified. Also the buttons for the straps are wrong. Somebody did thier homework and matched the insignia, but I doubt any HJ was still wearing this style strap in 1943. IMO it's been added for sure by someone well after 1945. That being said if the price was low enough some correct post 38 straps in the slip on style could be added. I don't like this set up much myself and would hold out for something better. It will sell for way too much IMO. Here's some pictures for reference.