This medium nib, all black Kaweco fountain pen features a chrome-plated steel nib with iridium tip and a metal Kaweco logo on the cap tip. In Kawecos history the PERKEO dip pen appears around 1900. The catalogue of the Heidelberg dip pen factory which was later named Kaweco, describes the PERKEO as a convertible foutain pen. Today PERKEO is designed to be an ink cartridge fountain pen and a convertible fountain pen. The design stems from the classic Kaweco tradition. The matt octagonal cap and the sixteen-edged barrel creates an effortless writing experience with unique colours. Kaweco fountain pens use international short ink cartridges, It will also take the Kaweco converter for use with bottled ink. - Pen Size Closed: 140mm - Pen Size Open: 155mm - Pen Weight: 14g - Brand: Kaweco - Pen Colour: All Black - Nib Size: Medium - Country of Manufacture: Germany - Display Box and Black Ink Cartridge Included