Ok I'm calling it a frequency skull as this is one of those classic Tumblr finds where there is no crediting whatsoever. I had a look about and could not find the artist, so if you know who created this lined skull then please leave

Found this simply intricate (yes that's what I said)  maze-like skull on Baubauhaus, created by Partel Oliva. Not sure what it was for  as a tried checking out Partel's  website only to find information on wedding decorations.