1851 S. F. Baird tr. J. G. Heck IV. 189 The length or rather depth of the stage..should be at least twice that of the proscenium-opening.
1995 77 626/1 A reliquary shrine..housed the Shroud from 1587 until 1685, when the structure was demolished to clear the view toward the proscenium opening of Guarini's chapel.