This is a vintage G.W. Co. Germany child's divided warming dish, likely from the 1940s-1950s.
It features a porcelain interior with divided sections, often decorated with nursery rhyme themes or animal motifs like the ducks shown.
The dish sits within a metal base, designed to be filled with hot water through a spout or stopper, which helps keep the child's food warm during meals.
These dishes were manufactured by G.W. Co. in Germany and are considered collectible vintage items.