The rigging system consists of 50 line sets of counterweighted arbors. The panels in front of the rail are for the Peter Clark System. This is a simple lighting system for cueing the carpenter when moving sets in and out. The motion picture screen is flown from one line set. The Hurley Super Glo screen is 23 x 46 ½ feet in size. The image is projected using the constant height system and moveable side masking is utilized. The portable lift facilitates focusing of the lighting instruments on the 4 electric battens.