This thing is in great condition considered its age. Looks practically new besides a little rust on the outside case. Includes instructions a new in package propane conversion kit a replacement filter tube tip and coil. The Thermos Model 8423 is a vintage 1960s two-burner camping stove manufactured by the King-Seeley Thermos Company. Known for its durable steel suitcase design, it famously features an integral generator filter that allows it to run on regular unleaded gasoline or white gas (naphtha).️ Specifications & Features Design: Folding two-burner suitcase design with fold-out legs or built-in hemisphere feet.Fuel Type: Dual-fuel capability designed for white gas or leaded/unleaded gasoline also propane with conversion kit .Dimensions: Roughly 22" x 13" x 6" when closed.Components: Featured a built-in windscreen, built-in pump, and a separate control lever for the secondary burner.