Due to the lack of evidence in the catalogue, there are some controversies in the order of production date of the Campus 3 copper windshield version and the steel windshield version. Before the direct evidence is found, everything is just a discussion. Let me combine my observations and I found some of my own opinions. I think the copper windshield version on the left side of the photo should be the first version in the early days, and the steel windshield version on the right side is the improved version. The copper windshield version uses a relatively primitive soldered copper wire, which is a common safety measure for early stoves. Equipped with a tank cover with automatic pressure relief on the steel windshield version, the upgrade of the safety device illustrates the evolutionary process In addition, I also found some differences between the two versions of the support feet. This is a copper windshield version. The support legs are connected directly to the fuel tank. This is a version of the steel windshield. The middle of the support foot connecting the copper piece adds a circular positioning design. Is this also the result of evolution?
Greetings, @anfeng , WOW!! What lovely showpieces you have in those two Campus stoves!! We seldom see then on our side of The Pond. So, seeing yours is a real treat!! Unfortunately, I don't know much about this model of stove, but your thoughts sound logical, to me! Thank you for sharing your comments, and your excellent photos of these lovely Swedish stoves. Wonderful stuff!!! Thanks, again, and God Bless! Every Good Wish, Doc
@Doc Mark Hello DOC, you are right, they are not common, but they are my favorite self-pressurizing oil stove, its shape is easy to store in a backpack, like a water glass. best regards! An Feng