Bottled ink from American manufacturer Noodler's which has a very wide range of colours and the revolutionary bulletproof range which is a permanent ink collection which resists all the tools of the forger - water, bleach UV and chemical resistant, your writing is sure to last a lifetime. No more permanent on surfaces other than paper than other inks.
N.B. Noodler's inks are very difficult to come by in Europe and we are often supplied with a range of colours which are only a selection of the full range. Please do let us know if there are any specific colours you are looking to get hold of and we will ask when we next make an order from Nathan Tardif of Noodler's!