50ml Signature Inks

Robert Oster Marrone Mustard is a medium golden brown fountain pen ink with low shading. It dries in 30 seconds in a medium nib on Rhodia and has a...

Robert Oster Light Green is a spring-y light green fountain pen ink with medium shading. It dries in 15 seconds in a medium nib on Rhodia and has a...

Robert Oster Green Lime is a bright lime green fountain pen ink with medium shading. It dries in 20 seconds in a medium nib on Rhodia and has an av...

Robert Oster Forest Green is a medium earthy green fountain pen ink with medium shading. It dries in 40 seconds in a medium nib on Rhodia and has a...

Robert Oster Ever Green is a bright medium green fountain pen ink with medium shading and a pop of black sheen in large swabs. It dries in 15 secon...

Robert Oster Crimson is a dusky subdued red fountain pen ink with medium shading. It dries in 45 seconds in a medium nib on Rhodia and has an avera...

Robert Oster Blue Lagoon is a bright, turquoise blue fountain pen ink with medium shading and low pink sheen. It dries in 25 seconds in a medium ni...

Robert Oster Santa's Hangover Ink is a beautiful, soft, muted red with pink undertones. It's not a bright fire truck red because Santa is hungover ...

The Robert Oster Signature Ink Muddy Dragon colour is a Muddy dragon that breathes golden fire with green-gold and dark chocolate shading.

Robert Oster Opal Green from the 1980’s collection is a dusky, pastel green fountain pen ink with medium shading and a pop of pink sheen in large s...

Robert Oster Lipstick Red is a medium dusky red fountain pen ink with medium shading. It dries in 20 seconds in a medium nib on Rhodia and has an a...

Robert Oster Jade is a medium earthy green fountain pen ink with medium shading. It dries in 40 seconds in a medium nib on Rhodia and has an averag...

Robert Oster Frankly Scarlet is a deep desaturated red fountain pen ink with low shading. It dries in 30 seconds in a medium nib on Rhodia and has ...

Robert Oster Burgundy is a medium burgundy red fountain pen ink with low shading. This burgundy ink is a lighter shade than most inks that bear the...