This Montblanc bottle ink is a must-have for any collector or enthusiast. The 60ml bottle of mystery black ink, with a formula number of 105190, is made in Austria. The brand Montblanc is known for its quality products, and this ink is no exception. It is perfect for use in pens or as a collectible item. The ink color is black, and the formula number is 105190. This product falls under the categories of ink refills and cartridges, pen accessories, pens and writing instruments, and collectibles. Get your hands on this high-quality Montblanc ink today.