The Kaweco Supra fountain pen is the big brother of the Liliput and a quick-change artist. A connector piece transforms this pen from a cartridge-only pocket pen to a full-sized converter-accepting pen.
 
The fountain pen's weight and length can be adjusted to meet the individual needs of its user. The minimalistic design is reminiscent of Bauhaus and Braun.   See photo included here showing it's 2 different sizes that it transforms into.
 
This fountain pen is made entirely out of brass. Brass will become tarnished when in use and develop an individual patina over time. The well-known ECO brass (brass manufactured by the Wieland Werke in Ulm) is lead-free. 
 
It comes with a larger #6 stainless steel nib and an ink cartridge to get you started writing right away!
 
The cap screws on to the back to post securely, and it accepts short standard international cartridges. Standard international converter is available separately. It comes packaged in a tin box.