La Perle des Encres or The Jewel of Inks, Herbin inks have long been a favourite of many fountain pen connoisseurs. Besides their wide range of colours, these inks are especially popular due to the use of entirely natural dyes. The use of these dyes mean that these inks are of a neutral pH (non-acidic) and fast-drying. The bottles serve as a functional pen rest thanks to the pen shaped indentation on the top. Each bottle contains 30ml of ink - The "D" from their name refers to the old French unit of measure "la Demi Courtine". Most colours are also available in standard international cartridges. Herbin started producing ink in 1670, making ink for King Louis XIV, the Sun King (or Le Roi Soleil) and other important French figures such as Victor Hugo (author of "The Hunchback of Notre Dame" and "Les Miserables").
