These are Showa-retro, rare porcelain rice bowls for a married couple, featuring a "Ikkannin" (a type of figurine). Unused, with a box, these are lidded rice bowls made by Kozan of Arita-yaki. - These porcelain products are mainly produced in Hasami, Nagasaki Prefecture. - They are characterized by blue and white dyeing on white porcelain, and are attractive for their durability, making them suitable for everyday use. - These rice bowls for a married couple are works by Kozan, and are decorated with traditional Hasami-yaki patterns.