Can't find the image, but just know it's like a 5x5 white card in the book. That's all. Loose card signed. The book is also a monster in size. LL for $55 though right?
I ordered my copy from a black-owned independent bookstore called Mahogany Books. (I posted the link in the Barnes & Noble thread.) I fully anticipated a bookplate like the one above, but it turned out he signed them directly on the title page in silver sharpie.