Single mantle with a steel fount, which is always nice when speaking of AGM. Pump/filler combo with a wet pip. It is instant lighting, but also has a pre-heat cup for kerosene use. These use a rack n pinion style pricker setup that I forgot to grab some photos of, but luckily other examples here have some pictures. Would've originally had a mica chimney, but I just run these cheap candle holders on most of my Junior lanterns from this era.