Thanks for the responses so far... :) The broken pieces you see above belong to a "lamp cover", if this may tell you anything... But, the exact item is the one you see belove, an unbroken one that I was able to find during one of my expeditions to "Hotel Boulevard Palace", the abandoned hotel where I was able to shoot the frames that I used in "Textures and Crops" series... Here, such simple and plain "lamp covers" are primarily used in the toilets of rather public places, generally to cover the lamps that are placed above the toilet mirrors which are hung just above the sinks...