Hi, On my badge, the Hinge ist not re-soldered and looks untouched, thus the hook. Indeed, these constructions look very fragile. It could be possible, as these badges were worn permanently, the attach system broken off, and thus the badge was sewn to the uniform by the owner. It could explain that pictures shown it sewn onto the uniform, and also that variation/repairs exist. Here are pictures of my badge. the pin could be not original but the hinge and hook are originally soldered.