"Salome" slide of Salome dancing before Herod. the pose act and for other kinds of theatrical effects, but in 1913 readers of the new catalog surprisingly saw the re-introduction of the three-tier triunial, stating its particular suitability for pose acts. During the serpentine and pose slide era some manufacturers developed quite elaborate mechanical special effects such as color wheels and strobe effects which could augment the older projections. One of the most elaborate was the Double Skyopticon - Butterfly Machine developed and sold by Joseph Menchen and appearing in their catalog dated September 1, 1906. This allowed for the introduction of two or more butterflies or birds which could skip around the stage on independent trajectories. Film was also projected onto performers from at least as early as 1912. During the first ever Royal Variety Performance (originally the Royal Command Performance) at the London f a l l 2014 theatre design & technology 49http://www.masongross.rutgers.edu/theater/ut2014 http://www.masongross.rutgers.edu/theater/ut2014