This is a "Loire Blue Onion Soup Ironstone Plate" by Nikko. It was manufactured by Nikko, a Japanese porcelain manufacturer. "Blue Onion" is a traditional pattern also seen in world-famous kilns such as Meissen and Carlsbad. The design depicts pomegranates and peaches, which were mistaken for onions in Chinese porcelain. It is a collector's item, often traded as a vintage or discontinued item. Diameter: Approximately 23 cm, Height: 3 cm Please understand that this item has been stored in a general household. Upon checking the back, there were slight stains in several places, so the price has been reduced. For those who understand.