Joan is a pipemaker from catalonia! The Zeppelin here has a CIS and he made it for himself. I could convince him to redo this pipe for me with a 9mm filter option and sell it to me.
It comes in the white bag above having a zebrano application and a highly polished ebonite stem with a fantastic outworked mouthpiece slot. Look at his logo (therefor doubleclick the pic):
..and have fun with this „bruyere grainmonster“: