Thank you for viewing. I have reduced the price. Thank you. The method of acquisition is unknown, but it has been stored in a cupboard for quite some time without being used. I'm not sure how to classify it, whether it's a cup, a small sake cup (ochoko), or a guinomi (sake cup), but I believe it is a sake vessel made of marble (onyx). There are three different shapes. Please check the images. This item has been stored by a private individual. Please refrain from purchasing if you are sensitive to such items. Thank you for your understanding.