Late 19th and early 20th centuries tin kitchens, made in Germany, are descendants of much earlier toy kitchens, based on real European models. The early 19th century drawing of a play kitchen demonstrates an open fire, burning charcoal, atop a tall hearth. Smoke is drawn to the hood and chimney. Hearth has an arched opening for storing fuel. Later tin kitchens have imitation-tile fire-boxes, burn coal, and contain an oven. Round openings on stove top are for heating pots and pans.