Found this old NORMA 26 - from what I can dig out, it is from around 1935-ish. At this time I have only cleaned the tank and the burner (including a new internal "wick" in the feeding tube). I might polish the brass a bit in order to let it reset a new glow - but I will leave the black parts as is. The windshield is a nice addition for a camping Alco-stove to be used under open skies. The stove is amazingly lightweight and it runs nice and hot and can keep tight without leaking during transport - I have used it for a walk in the woods, and it works great with a percolator. Very easy to control the heat. The key is similar to the old Juwel keys - and fits the Juwel 33-34-family fine. The only other Norma 26 I can find - is its sibling in the ref. gallery? Guess there are not to many around?