proscenium arch
Isaac Kremer/ January 14, 2018/ / 0 comments
In a theatre or similar building, the arch above the opening in the proscenium wall, at the front of the stage. In the U.S., as usually constructed, the arch is a relieving arch above a lintel composed of iron beams. 2. The imitation arch formed by means of furring, or the like, beneath such a lintel; the opening, of whatever form, which allows the performance to be seen by the audience. (Sturgis, 1900)