This later AGM stove has a cast iron burner and the massive leaded gasoline generator. This generator supposedly filters lead from gasoline and does best with a lot of preheating. It can flood spectacularly without enough preheating - if you let it. The little black wheel is similar to the Coleman lighting lever, but needs to be opened a few turns as the stove is preheating. (It adds air to the fuel to make it an instant-light stove.) It can then be closed when the stove is ready to cook. There is no separate fuel cap, the entire pump is removed to fill the fuel tank. The KampKook Kamper (decal) lost his hat, the decal shown is from a very similar model, the LCS-31.