Art Deco Celluloid Lamp

Very unusual small light made from celluloid. This is a form and material I’ve not seen used like this before. A nice cream background with a sort of blue/purple triangle and some electric/teal blue running through it. I’m sure meant to be a mood light of sorts. There is a small crack I’ve just noticed in the base, but in no way takes away from the design or the integrity of piece as a working lamp.