A Black Ink

Mix 3 parts of lampblack with 7 parts of olive oil.

A Red Ink

Mix 2 parts of vermilion with 3 parts of olive oil.

A Blue Ink

Mix 3 parts of aniline blue and 6 parts of oleic acid with 94 parts of castor oil.

A Green Ink

Mix 25 parts of aniline blue, 15 parts aniline lemon yellow, 50 parts oleic acid and castor oil 950 parts.