Atlantic-City Convention Center: dettaglio della bocca di una canna del Sub-Principal 16 (Foto Jean-Louis Coignet)

Atlantic-City Convention Center: détail de la bouche d'un tuyau de Sub-Principal 16 montrant le double biseau (Photo Jean-Louis Coignet)

Atlantic-City Convention Center: mouth detail of a Sub-Principal 16 pipe (Photo Jean-Louis Coignet)