Hello all, I just received this slab from an ebay purchase and I noticed immediately a few things (see photos).
Are these signs that this CGC slab has been tampered with? I reached out to the seller, and he was telling he received a few from CGC like this.
The one thing that drew my attention was the upper right corner with a slight bulge so when I run my finger across the top it has a slight opening (not completely open where there's air, but there's unevenness).
I'm new to comics, but very new to CGC slab purchasing. Any feedback would be appreciated.