Received during a decluttering of my parents' home, this is a beautiful ceramic teacup with a black and brown gradation. It was a promotional item given by 数研出版 (Suken Shuppan) in the Showa era, related to my father's work. Takatori Ware Yukiyama Kiln Yukiyama Onimaru, Heizan Onimaru - Color: Black and brown gradation - Material: Ceramic - Shape: Cylindrical - Interior Color: Cream - Size: Approximately 6.5cm in diameter x 7.5cm in height Unused, the teacup is clean, but due to long-term storage at my parents' home, the box and pamphlet show some discoloration and stains. Please consider this item if you are okay with the above condition.