Last October The Warhol Museum in Pittsburgh, PA, USA organized an exhibition of the art of Alex Ross, which lasted 3 months.
Alex Ross created a special print of Andy Warhol for the exhibit which can be seen in some of the promotional material for the exhibit.
On the left you see the special program which was created to showcase the exhibit featuring a brief history of comic books, a biography of Alex Ross and the artwork that was going to be shown at the gallery including pieces by Alex's mom Lynette, as well as other renowned artist such as Andrew Loomis, Norman Rockwell and Warhol himself. (I'll scan this program as soon as I can, it's truly remarkable)
Photos and scans of a promotional flyer of the exhibit (blue one), a flyer for Alex Ross' signing session (the one with Alex's photo)
and a flyer promoting the films that were played during the exhibit (Flash Gordon, Escape from NY, etc). Also a copy of Carnegie magazine with the Mythology Superman cover and a bookmark, and the 38'' x 27'' (96.5 x 68.5 cm) print with the Warhol flying image.
Special thanks to Jesse Kowalski and everyone at The Warhol Museum for the cool swag!