I believe this to be a Juwel 6A based on the catalog references here at CCS. Reference material: Link 1 Link 2 Link 3 Because one catalog/brochure is dated 1908, I'm concluding the stove *could* be that old. More accurate dating comments are welcomed and encouraged. The stove operates using the principles of a roarer burner with an interesting design of burner head. The vaporizing tubes for these stoves are of very light gauge metal and apparently were designed to be disposable/replaceable at low cost. It is lucky that this stove still retained it's vapo tube. The burning pictures below are shown to illustrate the stove at different power levels. In operation, the stove is quieter than a conventional roarer but louder than a silent. In fact, both the "roar" and the "hiss" of the two types are present simultaneously albeit at lower levels. Subjectively, I would compare it's heat output to that of a Primus #100, despite the large burner head. The flame plate is from another stove and I will provide links to that stove and also another article which describes the two stoves together in just a moment. I will include some information on the fettling challenges of the two stoves in the article. Stand by for those links in a following post in this thread. Enjoy!