Le gelosie

In Italy “gelosia” (= jealousy) may also refer to a blind or shutter, composed of parallel slats of wood, which slope in such a way as to control airflow and light, while excluding rain, the rays of the sun. and inspection from the outside.
It is also called “Persiana” (= the feminine of Persian), which once more underlines the possibility to guard the privacy of the house and look through the screen without being seen, associated with the concealing of women from view in an oriental harem