Vintage GW Co. Child Porcelain Warming Bowl Dish w/ Plaid, Elephant, Ducks, Chic

Vintage GW Co. Child Porcelain Warming Bowl Dish with Blue and White Plaid, an Elephant, Ducks, and Chick No cracks in the porcelain. The outer metal vessel has some cracks as shown in the photos, and there are a few stains on the porcelain. It has a spout for hot water to fill the bottom vessel to keep food in the bowl warm. Something small is rattling around in there. Whatever it is, I couldn't get it out. Interesting historical piece!!