I'm pretty lenient with NT vs. AT because I have seen a bunch of weird colors develop on my own
ASE's...but...that blue is just weird. I have seen it creep along the edge of an otherwise golden toned
ASE but never to engulf the entire coin with NO golden color involved....
I will go with AT. The normal reverse kinda says otherwise but not enough to get me over that annealed looking obverse that could have produced by intentionally adding a product only to the obverse
My opinion....