Kellar "Levitation"

Kellar's "Levitation of Princess Karnac"

Kellar supposedly developed this trick by abruptly walking onto the stage during a show by Maskelyne, seeing what he needed to know, and leaving.[6] Unable to duplicate it, Kellar hired another magician to help build another, but eventually designed a new trick with the help of the Otis Elevator Company. Another version built by Kellar was purchased by Harry Blackstone, Sr., who used the trick for many years. The Buffalo writer John Northern Hilliard wrote that the levitation was a marvel of the twentieth century and "the crowning achievement of Mr. Kellar's long and brilliant career."