Montblanc Writing Accessories Great Characters Enzo Ferrari 50ml Purple Ink Bottle, 128080Montblanc ink bottle 50 ml, purple, Great Characters Enzo Farrari. Montblanc Special Edition ink bottles come in a square packaging that evokes concepts and themes of each collection, making them valuable collectible gifts for the Montblanc enthusiasts. The colour of the special edition Enzo Ferrari is inspired by his choice to use only purple ink for his written correspondence.