50ml Signature Inks

Robert Oster Pinky is a light pink fountain pen ink with medium shading. It dries in 25 seconds in a medium nib on Rhodia and has an average flow. ...

Robert Oster Orange Rumble is a dark, '70’s-inspired orange fountain pen ink with medium shading. It dries in 50 seconds in a medium nib on Rhodia ...

Robert Oster Green Olive is a deep yellow fountain pen ink with medium shading. It dries in 40 seconds in a medium nib on Rhodia and has an average...

Robert Oster Dark Chocolate is a dark purple-brown fountain pen ink with medium shading and low copper sheen. It dries in 30 seconds in a medium ni...

Robert Oster Copper is a muted purple-red fountain pen ink with medium shading and black sheen in large swabs. It dries in 30 seconds in a medium n...

Robert Oster Chartreuse is a medium green-yellow fountain pen ink with medium shading (we think it kind of looks like pickle juice). It dries in 3...

Robert Oster Blue Denim is a medium blue fountain pen ink with a green undertone, medium shading, and medium pink sheen. It dries in 30 seconds in ...

Robert Oster Detox is a part of the Robert Oster Signature Inks Line and is handmade in Australia. This light green colour has some great shading p...

Robert Oster Sinner’s Poison is a yellow-greenish fountain pen ink with dark undertones and comes in a bottle of 50ml. Robert Oster Inks  An iconic...

A fiery pastel Golden Orange Fire that trails away in homage to the Sun and meets the page in sympathy. Robert Oster Inks     An iconic Aussie prod...

The Robert Oster Signature Ink Muddy Grass colour is a Earth green colour with dark green shading.

The Robert Oster Signature Ink Muddy Wine colour is a Coonawarra wine color. May exhibit a dark golden sheen surrounded by rich grape skin shading.

The 'fruity and long' Australis tea is a woody olive green of this special Australian tea blend. Robert Oster Inks An iconic Aussie product withi...

Robert Oster - Kids On The Block This is a blue first released in UK for a school kids event organized by Bernardo Gomes of Fountain Pen UK Facebo...

Robert Oster Sushi is a medium warm-tone pink fountain pen ink with low shading. It dries in 15 seconds in a medium nib on Rhodia and has an averag...

Robert Oster Ryde Green is a bright lime green fountain pen ink with low shading. It dries in 30 seconds in a medium nib on Rhodia and has an avera...

Robert Oster Purple Rock is a dark violet fountain pen ink with medium shading and a pop of red sheen in large swabs. It dries in 40 seconds in a m...

Robert Oster Plumb Nut is a dusky pink fountain pen ink with low shading. It dries in 30 seconds in a medium nib on Rhodia and has an average flow....

Robert Oster Midnight Sapphire is a dark blue, almost a blue-black fountain pen ink with medium shading and a pop of pink sheen in large swabs. It ...

Robert Oster Frankly Blue is a medium blue fountain pen ink with a slight green undertone, medium shading, and medium sheen. It dries in 30 second...

Robert Oster Australian Opal Blue is a pale, spring blue fountain pen ink with low shading. It dries in 20 seconds in a medium nib on Rhodia and ha...

Robert Oster Pink Squirrel is a part of the Robert Oster Signature Inks Line and is handmade in Australia. This pink/purple/plum colour is muted bu...

Robert Oster Blue Martini is a part of the Robert Oster Signature Inks Line and is handmade in Australia. This rich blue colour is deep but has som...

Robert Oster Australian Opal Mauve is a blue-purple fountain pen ink with low shading. It dries in 25 seconds in a medium nib on Rhodia. Robert Ost...