Very Nice lantern. If you try the electrolysis and it doesn,t work then try the molasses method. It won't hurt anything and you can leave it for weeks if need be. I have had lanterns in the soak for a month with no ill effects. It is slower than other methods but will get rid of all the rust. I jar of molasses and five gallons of water. It sometimes ferments and smells awful where it is warm but that doesn't hurt the rust removal power. It will get rustin inaccesable places too.