ASSA Twin Combi
It is an ASSA Twin Combi with 5 finger pins that have to be lifted and rotated.
I think those little groves in the pins are supposed to make rotating them harder.
I used a special self made tool for doing the job.
It is a little shallower in the middle to better control the finger pins when lifting them and it looks a little like a claw for better rotating them.
Hope I can get it on cam soon.