Hi,all. I’ve found this old Juwel, which I understand is probably a 6 B, based on the hex base on the removable pump, the tubes for the pan supports and other details. The burner (and riser tube ?) has been replaced with a modern one, which is understandable, given the original burner was probably hard to come by, decades after the stove was manufactured. The pan support «tubes» were crudely resoldered to the tank, and the pan supports were soldered stuck in the tubes, so I have redone the soldering job. The NRV needed a new cork. This is the first time I got to use on of my spares in that particular size :-) The unusually large pump leather is very hard and cracked, so a new one has been mounted. The stove burns OK with the replaced burner. I think I will clean it up a little better. Also I expect this will lack the original burner indefinitely !!