One of pair of cups

One of pair of cups, artist not specified. A small, dark-colored cup with a wide mouth and a narrow base. The cup has a raised design around the body. The design features curved lines and shapes resembling leaves or feathers. The exterior surface of the cup appears to have a marbled or mottled effect. The number "358" is printed on the upper right side of the cup. The cup is sitting on a flat surface, casting a faint shadow behind it. The background is a light-colored surface, possibly a tablecloth or other fabric.