This is an octagonal teacup from Mino ware, Japan, featuring a tenmoku-style kiln transmutation glaze. High-temperature firing causes the glaze to flow naturally, creating a unique appearance with a blend of blue and white. The exterior of the teacup showcases a beautiful natural gradation from deep brown to black, with feather-like flowing glaze patterns that enhance its visual appeal. The interior has a gentle beige color with crackle, giving it a sense of age and character. Recommended for tea ceremonies, product photography, or as a collectible item. The overall handmade texture is evident, and there is no mark on the foot. Please note that there may be variations in the natural appearance and individual characteristics due to the firing process. Size: Approximately 6.5cm in diameter x 3.5cm in height Thank you for viewing.