Playing with amonia, vinigar and salt gives you patina on a copper. All parts are then lacquered to stop further tarnishing process. If you would like to order something different or a combo of few fountain pens from my collection, write me a message.Material: ebonite, copper, patina, lacuer. Threads body to cap: m13x1 double start. Threads body to section: m11x1 single point. Ink: ink cartridge or ink converter. Clip: yes, solid copper, hand cut and filed. This item is made of copper and ebonite, patina, steel, nib, black, brass, metal, rubber.