Bamboo ceiling lampshade, vintage

Beautiful bamboo ceiling lampshade, 70s or 80s. Good condition, clean and pampered by the previous owners! Some small gaps, visible in the photos. The first photo shows the view you can get from the lampshade when it is hung on the ceiling. It is necessary to pass the cable at the place where the stems intersect, at the top, and tighten the socket at the crossing of the different pieces of bamboo. Height 25 cm, diameter 35 cm.