Kyo no oto ink bottle series
Kyo no oto ink for fountain pens are made in Kyoto, Japan. All five colors are made using traditional japanese dyeing techniques. The five colors are historical colors that have been used since the Heian era, about 1000 years ago.
A black tone "Nurebairo", a red tone "Imayouiro", a green tone "Kokeiro", a yellow tone "Yamabukiiro" and a blue tone "Aonibi" are available.