High-quality Baika Sumi (plum blossom ink), calligraphy supplies made by Kobaien. - Model Name: Baika Sumi - Manufacturer: Kobaien - Accessories: Wooden box - Color: Black Thank you for viewing. This is a superb Baika Sumi that my father used for calligraphy at home. The purchase date is unknown. ◎ It is a 1.5-cho type, and approximately 80mm remains. ＊ Unused items are priced at ¥16,500 (85mm in length) (For your reference) I don't have detailed information about Baika Sumi, so please consider this item with no claims and no returns. If you are interested in purchasing, please consider it. Some price reduction is also possible, so please feel free to inquire.