This butter warmer is part of the iconic Købenstyle line, designed by Jens Quistgaard in 1950. It's crafted from enameled steel with an ergonomic teak handle designed to stay cool during use. While perfect for melting butter, it can also be used for heating syrup, sauces, and soups. It comes in various colors, including the teal shown in the image, and is known for its mid-century modern Scandinavian design.