Vapor Lamps performed just as the name implies, the vapor or fume burns.
These lamps are filled with a fuel, such as burning fluid or gasoline, which vaporizes and turns from the liquid to a gas. The vapors then typically go through tiny holes in a tube shape burner where they are lit to produce light. Some lamps were made with a packing material or cotton wick inside to absorb the liquid and allow the vapors to release.
I have elected to picture both lamps and burners on a single page due to the limited number of Vapor burning items in my collection.