A partially-enclosed portion of an assembly room, the ceiling of which is not more than 5 ft above the proscenium opening, which is designed or used for the presentation of plays, demonstrations, or other entertainment
Ralph W. Burklin & Robert G. Purington, Fire Terms: A Guide to Their Meaning and Use, National Protection Association, Boston, MA 1980 USA. (Guide: Meaning and Use, Nat Prot Association Fr Srvc - Amer) {457}