NIKKO Bone China Demitasse Coffee Cup & Saucer Cup Size: Diameter: Approximately 7.5cm Height: Approximately 7cm Please allow for slight variations. Bone china is a type of porcelain that contains a certain percentage or more of "bone ash" (calcined bone) in its clay composition. It originated in England in the late 18th century. Its main characteristics are high translucency, a warm, milky white color, and high strength, which are unique to bone china due to the calcium phosphate component of the bone ash. There are some scratches on the back of the cup and the front of the saucer, but they are in good condition. Please understand that this is a used item before purchasing. We will carefully pack and ship the item.