Robert Oster bottle ink, Sepia Nights, 50ml Calligraphy or you can use the

or you can use the Kaweco squeeze-style converter with bottled fountain pen ink

Its unique click mechanism includes a top button to extend the point and a side button to retract it

When removing the nib from the nib holder

Mechanism: Retractable ballpoint

it features a chiselled sterling silver cap and barrel with gold-finished clip and trim

Robert Oster bottle ink, Sepia Nights, 50ml Calligraphy or you can use theRobert Oster Signature Ink Collection Crafted in South Australia, the Robert Oster Signature Collection showcases the creators most iconic and expressive colours. Inspired by the Australian landscape, each ink is blended with care to deliver smooth flow, rich shading, and vibrant personality on the page. This flagship collection features the full spectrum of Robert Osters artistic vision from calm, earthy tones to bold, energetic hues offering writers