I don't know how many are familiar with this piece of iron, but it has some great qualities for RV'ers. The lid is flat on it and it has a piece to lock it on and keep it from sliding. The advantage...
Historically this is known as a chicken fryer. The notched lid on some early pans was intended to act as a hinge and support the top while still cooking, preventing the condensation from leaking all over your stove. If you have the larger size, they work great for frying and roasting, as well as the top works great for tortillas when you do a batch of chili.