- A method of changing scenery quickly (also called the chariot-and-polesystem) first used by Giacomo Torelli in 17th-century Italy.wings or flats were suspended just above the stage on a framethat projected below the floor through a long slit. The frame rested on awheeled platform or carriage on rails. As a piece of scenery was rolled off onthe underground rail, a duplicate carriage, connected by ropes moving inopposite directions, brought on the replacement. This was driven by acounterweight system that could be operated by "a single boy of 15years". An operational carriage-and-frame system still exists at theDrottningholm Theatre and Museum near Stockholm.