Diameter: 8 cm Height: 5.5 cm With signature. The artist is unknown, but I believe it was purchased from either a gallery or a tableware shop. The foot of the piece is well-made, so it may be a good item (in my subjective opinion). Please understand that this item has been in someone's possession before and has been inspected at home by an amateur. We look forward to your purchase. We will pack it carefully and ship it. Color: Beige Glass/Cup/Liquor Container: Yunomi, Ochoko (sake cup) Material: Ceramic Plate Shape: Round