Brass Kaweco Sport Fountain PenA Classic! The Kaweco Sport was first designed in 1911 as a pocket fountain pen which could be carried everywhere. Based on an octagonal design with an oversized cap, Kaweco Sport fountain pens measure only 10. 5cm when closed, but when the cap is mounted on top of the barrel they grow into a 13cm long, standard sized pen, hence the slogan: "Small in the pocket, large in the hand". The Kaweco BRASS Sport fountain pen is made of solid, untreated, CNC