TWSBI Swipe Fountain Pen - Prussian Blue notebookruling Grid It features an acid-etched +

It features an acid-etched + stonewashed barrel & antique brass trim

and a chart for measuring walking distances

Sonnet is perfectly weighted and balanced to optimize the twin channel feed and collector system ensuring even supply of ink to the nib

ystudio’s portable fountain pen creates a new way to bring your fountain pen with you

TWSBI Swipe Fountain Pen - Prussian Blue notebookruling Grid It features an acid-etched +A traditional cartridge, converter type fountain pen. The pen, ink cartridge, traditional converter, and a spring converter come all in one, ready for you to use right away. Cartridges Converter are standard international top hole fitting