Heavy steel or cast iron frying pan with blue and white spatter enamelware finish, worn from years of use.
This looks like a great chicken fryer, or all-purpose favorite for general camp use over a fire or stove.
It's 10 3/4" in diameter x 2 1/4" deep, with a very pleasing heft to it. A good soak and scrubbing would probably help shine this beauty up a bit!