A traditional iron frying pan? What does it look like? Can you tell me, thank you!

Traditional iron frying pan looks like an upside-down hat, there are two small half-circle ear; iron pan bought back to be used on the stove burn, pour some vegetable oil, with a brush constantly coated, to be the oil burned red, cleaned off, so that the future iron pan are not easy to rust. Remember both sides of the same practice, otherwise a long time, by the side of the fire will rust rust block, it is easy to pollute your home bright stove.