I'd say (without knowing the size of the item) the purpose intended for the larger item would be for (any combo/singular of the following) scooping/holding = coal , ash &/or coal clinkers , jim ....aka a 'coal scuttle' .
The smaller 3-legged do-dad looks like a designer/decorative type , originals of which would commonly be used for heating/cooking over live fire in a fireplace (I don't think yours would stand up to that kinda hevi-duty use , though) .