I agree with Dan everyone I’ve owned held or seen have been very smooth to the touch and evenly toned like the ones below. I don’t see them with raised fibers rough patches or odd sections of dirty and clean I have however seen many skinned cards with these qualities.
My rule of thumb on these is simple if you look at the item and then begin to hypothesize situations to explain possible issues with the card i.e. well it could have been in a scrapbook or it may have had water damage at one time etc. You should stop and take a step back. These things should just look right at a glance IMO.
I know a board member owns this card and he’s an honest guy so perhaps he will chime in and give more details the history etc.
P.S. I got a PM from a person involved with the sale, who says they think the card was glued in an album at one time and that's all that spot is....well noted but again I think it looks off.