Question of authenticity on this Mantle

[wdwfan]

Was going to post this on a couple of different boards, but I figured I'd get the answers I'm needing here and quickly. Looking for answers as to authenticity on this 1966T Mantle. I've scanned both the front and back. It looks really nice obviously, almost too nice to be honest.

But I checked and it doesn't say reprint anywhere. I measured it against some of my other 66T that I know are authentic, and it was the same size. It also feels nearly the same as the rest of my 66T I have. One of the things that does concern me is the brown tinting on the back right side of the card as seen in the second scan.

Anyway, here's the card I'm asking about...