I'm down sizing some of my darkroom equipment and accessories!
Here is a genuine Durst FEMOTUB. There are not many of these sold on the internet so I am classing this as rare.
It is a lens board extention tube used for same size reductions with a 150mm lens. I have used this with my Laborator 1200 (maybe it will work with other enlargers too).
It is used and in very good condition. It does show some signs of use with a couple of scratches but nothing to hamper its functionality. The interior felt is still in tacked!