Hello, First time here, so I hope I am posting in the right spot. I looked around and this seemed like a good place. I was recently given a Cross Century Classic fountain pen, like this one here: http://www.cross.com/classic-century-classic-black-fountain-pen.aspx I am wanting to get a bottle ink converter so I don't have to use the cartridges, but it seems that Cross doesn't make one that fits this pen, due to its slim size. Would anyone know of anyone else that would make a converter to fit this pen? Thanks so much for any thoughts, Chris