Piston Filler Fountain pen.Simply unscrew the end cap, dip into ink, screw back the end cap, and your done! Ready to write!!
TWSBI Diamond Mini Piston Filling Fountain Pen, the smaller sibling to Diamond 580, Large-Capacity, Writing Calligraphy Pen Gift - AliExpress
TWSBI Diamond Mini AL Grape Stylo Plume - Vulpen / Fountain pen
TWSBI Diamond Mini Fountain Pen - White Rose Gold II – Phidon
TWSBI Diamond 580 Pens, Nib Sizes Extra Fine to Broad
Piston filler type fountain pen
TWSBI Diamond Mini Classic Fountain Pen F nib
The TWSBI Mini fountain pen in Classic features a clear acrylic body black cap and turning knob silver trim as well as a piston ink-filling system smooth-writing steel nib and a screw-on cap. The cap of the TWSBI Mini fountain pen screws on to the end of the barrel to post. This pen runs smaller in length than the Diamond 580. The TWSBI Mini piston ink-filling system uses only bottled ink and the clear body allows the user to view the level of ink remaining in the pen at all times.
TWSBI Mini Fountain Pen, Classic, Medium Nib
TWSBI Diamond Mini Classic Fountain Pen - Extra Fine
The TWSBI (commonly pronounced twiz-bee) Mini is like the little brother of the Diamond 580. Take all the parts you love about the Diamond 580 - the modern, industrial design, the transparent barrel, the piston mechanism, the smooth-writing stainless steel nib - then make it more compact for writers who prefer a postable, pocket fountain pen. That's the TWSBI Mini in a nutshell. To enhance the style and luxury of this pen, the Mini AL has an aluminum grip section and piston mechanism.
TWSBI Diamond Mini Al Silver Fountain Pen - Medium
TWSBI Mini Fountain Pen in AL Silver - Goldspot Pens
TWSBI Diamond Mini Fountain Pen Review – Ian Hedley
TWSBI Mini Fountain Pen in Classic Review – – Fountain Pen, Ink, and Stationery Reviews