This is a Tangent Yellow sugar bowl that was made in Japan for Mikasa from 1978 to 1981 by designer Bob Van Allen. His fab work was short-lived as he died in his early forties. The look is fresh and "Neo-Deco" as I like to call it. This particular line came in colors of yellow, terra cotta, black and navy blue and was known as stone china. One could build a modern kitchen around this piece.