The semps will pick up the color more later as the cool temps make them turn more red. The bowl belonged to a grandmother. I'm 67 and can't remember when the bowl hasn't been around. I think cheap enameled tin was more common in the early half of the last century. At least I seem to remember more of it from when I was a child. Cups, plates, bowls and pitchers. I think the cooking utensils might have been produced a bit longer. The enamel nearly always was chipped from use
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