Giustificazione contro la censura del palco scenario del nuovo teatro di Perugia
A 1781 Italian treatise on theatre stage design, published in Perugia by Baldassarre Orsini, defending a new theatre's scenery against censorship and aimed at architects and stage designers. The pictures are a decorative banner with a Latin motto above a compass emblem, and a precise technical diagram of converging perspective lines and a stage-geometry cone, useful for designers seeking classical ornament or diagrammatic perspective construction.
