A Kaweco Sport aluminium pocket fountain pen with an integrated self-filling ink space, milled from solid aluminium blanks, laser engraved, and hand polished. The Piston Fountain Pen is small and compact (measuring 10.5cm, 13cm with the cap on), making it useful for on-the-go, and can hold a large volume of ink, which ensures longevity of use, overall creating a pleasant writing experience. The robust aluminium shell has a matt, anodized surface allowing for a comfortable weight and high-quality feel. Equipped with a clip for convenience, it also has a transparent ink window to keep an eye on ink levels — which can be easily adjusted with the efficient refilling, piston mechanism. Kaweco, founded as Heidelberger Federhalterfabrik in 1883, began producing pocket fountain pens in 1912. Presented in a circular, gold metal tin.