I remember this being from the Taisho or Showa era. It was originally a confectionery mold (jelly mold), but it's the perfect size for a sake cup. The inside is glazed. Diameter: Approximately 6.5 x 5.1 cm Height: Approximately 2.2 cm There is a crack on the inside. Sizes are approximate. The actual item may differ slightly in color from the images. As it is old, there are age-related scratches, stains, etc. The actual item is darker in color. The last two photos show the color closest to the actual item.