It was a neat exhibit and all, but they had a good amount of very large B&W prints, some of them quite stunning, obviously coming from large format and blown up to several feet by several feet. They were uncredited. They seemed to be either paper or plastic mounted to a black backing board. After leaving the exhibit I asked around trying to find out what kind of prints they were and who printed them. Somewhat surprisingly, they actually tried to answer my question and presented a long sequence of equally clueless officials. Besides the large prints in the exhibit, they had several dozen digital prints of the photographs taken during the pillage (er, "discovery") of the tomb in the '30s, originally taken on on glass plates.
I think the gallery is up and moving away from Dallas now, but if anyone went, and has some insight as to how the big prints were printed, I would be very interested. Possibly they were printed on one of those really big inkjet printers.