A sound engineer holds one of the Mapleson cylinders, in the Rodgers and Hammerstein Archives of Recorded Sound, Source, The New York Public Library for the Performing Arts.
Home Hot Wax: The Lionel Mapleson Story A sound engineer holds one of the Mapleson cylinders, in the Rodgers and Hammerstein Archives of Recorded Sound, The New York Public Library for the Performing Arts