Author: Els

Review Title: Very intense color

The Robert Koch ink is really a surprise: the indication shown in the product picture to me appears rather as a deep blue. But when used on paper it is an absolutely fascinating blue with quite a green tone. - to me it almost appears turquoise. De Atramentis calls it "adular blue". It is an eye catcher and suitable for expressive usage. A positive surprise but maybe not for use in official documents.
Appelboom service was - as always - impeccable !