Japanese Shunga Erotica cup. This is a great collectors piece. Hand painted in excellent detail in deep colors. Because this is an early piece, likely early Showa or prewar, the quality of the enamels is thicker and deeper in color than cheaper, lesser examples. The way it feels in your hand is great. Wonderful example of vintage folk craft porcelain. This was acquired in Kyushu, Japan in the 1990s.