Borghini Fountain Pen Chrome Bordeaux. Borghini Fountain Pen Chrome Bordeaux. The Borghini Guilloche Prestige Fountain Pen has a rhodium plated metal cap which has a finely engraved guilloche style wave pattern. Each Fountain Pen comes with a medium point nib and a standard refill. The body diameter is 15mm and the pen is 14.5cm long.