Looks like a handle off of James Bond’s 007 umbrella:o: careful with it, you might blow something up. On a more serious note, it looks like a handle grip, maybe for some piece of equipment that is to have authorized access. On the side, is that a set screw? And is the hole next to it threaded? Is the end opposite the combo hollow like it would slip over a pipe or handle?.Good job figuring out the combo. One other thing, are there any patent numbers on it anywhere? Mark