Pilot Iroshizuku Fountain pen ink Ajisai 50 ml Octopus Fluids Purple The stationery company KA-KU is

The stationery company KA-KU is a boutique brand based in Osaka Japan

Hokusai Rikancha

Hokusai Tetsu

one of the few colors introduced by the west at that time

This blue-green color was commonly used by geisha's in shinbashi and hanayanagi

Pilot Iroshizuku Fountain pen ink Ajisai 50 ml Octopus Fluids Purple The stationery company KA-KU isPilot Iroshizuku a staple under the fountain pen enthousiasts. Pilot has a wide variety of colors based on nature and the seasons. These Japanese fountain pen inks contain one of the most beloved colors within the fountain pen community. Some of which have unfortunately been replaced over the years, but every replacements is another persons favorite. Currently the Iroshizuku line up contains the following colors: Ajisai Asa Gao Kon Peki Ama Iro Ku