vintage enamelware skillet, heavy enameled steel frying pan for camping cookstove or campfire

Nice old enamel ware skillet for camping or wood stove use... this is strangely heavy, with a very satisfying heft!

It's about 10" in diameter x 2" deep. We think it's probably enamel over steel, but it might be enameled cast iron?

It's showing use, and wear to the enamel in areas. Still plenty of life left in it yet!