I'm pretty sure that you have here is a British Badge - Life Guards, George VI, brass slide badge (see pic below). The letters "GR" under the crown, stand for "George Rex", or King George. (the VI in this case) You can search GR Crown badge & find many similar examples. Hope this solves it / helpsView attachment 665954
...solvedThanks mangum! Thats exsacly what it is. Just couldnt figure out what the words were. Do u have any idea what it might be worth? Ahhh ill try looking it up later. Thank you!