Using ancient recipes and modern technology, these inks set out to offer a genuine colour range from a bygone era. They are made from natural tannins and pigments from botanically sustainable sources. They are transparent, neutral Ph, water soluble and with good lightfastness. Colours are intermixable. They are suitable for quill, reed and dip pens, also ruling pens, automatic pens and brushes, not for fountain or technical drawing pens. In 30ml bottles.