The Visconti ink bottles are clearly different, but may not be what you expect. They are not glass, but plastic. This green offers what I would say is a high amount of shading and drys at a normal rate. I am using it in the Montblanc 149 Meisterstuck Flex. I am very pleased with the ink flow and the color. Nervous, with the bottle shape and a higher center of gravity, each time I fill my pen I envision knocking the bottle over and green ink is everywhere.