These are all similar to blue ink. They are of high quality and are perfect for calligraphy or ink wash painting. These are three unused sticks that have been purchased and stored for a long time. 1. Blue Ink, Seigen, Heisei 18 (2006), Genrindo Original price: 1050 yen -> Current price: 1980 yen Ideal for picture letters, haiga (haiku paintings), and ink wash painting. To create a light ink, grind it thickly and then dilute it. One stick: 6.5 x 1.5 x 0.6 cm Box: 8 x 3 x 1.5 cm 2. Blue Ink, Seihin, Kobaien-zo Original price: 2000 yen -> Current price: 3300 yen Blue ink made by adding genuine indigo to pine soot. It has a strong blue tint that remains even when used thickly. One stick: 8.0 x 2.3 x 0.8 cm Box: 10 x 3 x 1.5 cm 3. Bokusei (Ink Saint) Details unknown, but with a carving on the back. Price unknown, but it is likely made by Kobaien, similar to Seihin. One stick: 8.0 x 2.0 x 0.7 cm Box: 10 x 3 x 1.5 cm \* Kobaien is a prestigious shop in Nara that makes handmade ink. Thank you for looking.