"Lon Chaney Plays Role Of Paris Opera Phantom", New York Times, 7 september 1925. Geraadpleegd op 1 november 2010. “The Phantom of the Opera, which has been many months in the making, is to be presented this evening at the Astor Theatre. We have told of the great stage effects, of the production of a section of the Paris Opera, with the grand staircase, the amphitheater, the back-stage scene -- shifting devices and cellars associated with the horrors of the Second Commune. ...”