Translucent smoky amber cap and barrel
Visible ink supply
14k gold nib with matching gold trim
Vacuum filling system
For 'vacuum filler' fountain pens, the tip at the back (the piston knob) must always be unscrewed slightly to let the ink flow through when you write for a long time. Therefore, when the piston knob is completely screwed in, the rubber piece at the end of the metal rod inside seals the reservoir of the nib and prevents the ink from flowing to the end of it (recommended during transport or when the fountain pen is not in use).

Go have a look in the 'Specifications' section below at the PDF file to see how to fill the fountain pen and nibs size.