The greatest accomplishment of the Los Angeles Art Organ Company during its brief lifespan under that name was the completion of the lavish instrument that was on display in Festival Hall at the 1904 St. Louis World's Fair.
The instrument, designed by George Ashdown Audsley, was the largest in the world and contained 10,059 pipes.
The organ was only partially functional during the first weeks of the fair (due in part to the financial burden the construction was placing on the firm).
[1] Most notable is France's Alexandre Guilmant, who played a series of 40 concerts in a six-week period.
This instrument is now installed in Philadelphia, Pennsylvania, and serves as the core of the famous Wanamaker Grand Court Organ.