The Hollywood High School E. M. Skinner Organ Opus 481-A is a pipe organ in Hollywood High School, in Hollywood, Los Angeles, California. The contract for Opus 481 was made in June 1924, shortly after Skinner returned from his second trip to England and France. It took two years to build the organ. The organ was expanded (the Swell 4′ Octave and 4′ Clarion) in 1929 by Skinner. When the 1929 Memorial auditorium was built, the organ was moved and also registered as Opus 481-A. Then in 1954 it was placed into storage when the auditorium was refurbished, torn down to its foundation and rebuilt in its present form. Opus 481 is considered to be of musical value, built by the "Cadillac" of symphonic organ builders of the 20th century. The historic organ is an E. M. Skinner Opus 481 of 3-manuals,