The Pineider Mystery Filler is collection of fountain pens made in Florence, Italy, and designed by Dante Del Vecchio.

The Pens feature Pineider’s soft touch magnetic lock cap system. It has a clear barrel and cap so you can see the mystery filler in action.

The filling mechanism is unique – push the button to extract the piston knob, turn the piston knob like any other piston filler to fill the pen with ink, then push the button again to lock it in place.

You now have a choice between a stainless-steel nib or a 14-kt gold hyperflex Quill nib.

Pen is pictured with the 14k gold nib