Here is mine M M, seems to be exactly the same as this one. I was doubtful about the original coating until I saw some minor remains of some kind o plating. Don't think it is nickel but for sure it is very thin and not durable. I digged out this stove from my barn recently and descided to getting it in descent condition. After removing all rust and treated it with oil inside and nickel paste outside I am quite pleased. The lid and bottom shows a L-shaped slot that probably is made for fixing all parts together. But the windshield part only have holes corresponding so I believe some rivetso or similar is missing. One image shows the parts separated and the fettlers fuel to the left. In another the fettlers cottage with the bench on the south side. A perfect place for cleaning old stoves enjoying the sun.