OK, it's hard to see in the scan, but if you look very closely, you will see a small flat bar across the bottom of the Liaket spange. My best guess is this was done to prevent the TWM next to it from snagging/tearing at the spange as the TWM is (and has been) on and off the bar often enough to have been repaired at least once. The current pin is there (vertical safety pin soldered on!!) but the catch has long since been snapped off. The thing I cannot figure out with this one is when/why he would sometimes wear it on a pocket and sometimes on the bar!!