Don't remember if there's one behind mine. They put velcro behind ours so they stuck on easily when HRH presented us with them.
That was thirty years ago when I was a steely eyed killer who looked like this:
.
I've still got that same old No1 jacket in the wardrobe so I'll have to have a look. It doesn't fit now of course, the weight training and, er...pies made sure of that. I've still got the steely eyes but now they look more like this:
