Campus 3 is a magical small stove with a slim shape that is easy to carry in a backpack, like a water glass. I found it on ebay Argentina, except for the lack of a folding needle, which is basically complete, even with an original yellow wipe. Nickel plating on the surface of the tank The inner ring of the fire bowl has two bulges The text in the flame baffle is different from that in the copper windshield version. The copper windshield version has a 9400 part number. The tank lid with pressure relief valve is the same as in the 1930s catalog. It also has a square plane where the wrench can be placed. If the temperature is lowered, a negative pressure will be generated in the tank. At this time, it may not be easy to unscrew the lid by hand. A wrench of the right size can help you solve the problem. The windshield is made of steel and has a plating layer on the surface to resist oxidation. Beautiful blue flame.