Nick, where you can see the underside of Victoria's chin, just left of the S in six, is the bust incuse or in relief, it's one of those optical illusions for me? Also, speaking personally, I'd alway prefer a GEF fully-struck over a aUNC with weaknesses! It's as you would expect, the outline of the bust leaves an incuse impression on the reverse die and then becomes a relief outline on the coin.