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Robert Oster

Explore our collection of Robert Oster Signature Inks – made in Australia and described as well-behaved fountain pen inks. Each ink is produced in a just-in-time manner to meet demand and is bottled in recyclable PET plastic. Robert Oster inks are non-toxic and eco-friendly, crafted with care for both writing performance and environmental impact.

Looking for the full range or more? Browse all bottled fountain pen inks or shop ink samples to try before you commit.

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Robert Oster Caffe Crema - 50ml Bottled Ink

Caffe Crema - 2ml

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$1.70

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Robert Oster Caffe Crema - 50ml Bottled Ink

Caffe Crema - 2ml

$1.70

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Gold Antiqua - 2ml ink sample showing a warm brown swatch with darker saturation and a watermark, representing Robert Oster's dye-based ink.

Gold Antiqua - 2ml

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$1.70

X

Gold Antiqua - 2ml ink sample showing a warm brown swatch with darker saturation and a watermark, representing Robert Oster's dye-based ink.

Gold Antiqua - 2ml

$1.70

More Details →

Toffee - 2ml: An ink swatch displays an orange-brown wash with darker borders, representing Robert Oster's dye-based ink sample on white paper.

Toffee - 2ml

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$1.70

X

Toffee - 2ml: An ink swatch displays an orange-brown wash with darker borders, representing Robert Oster's dye-based ink sample on white paper.

Toffee - 2ml

$1.70

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Ink swatch of Robert Oster's Motor Oil - 2ml, showing a dark brown, almost black, fountain pen ink with THE DESK BANDIT printed below.

Motor Oil - 2ml

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$1.70

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Ink swatch of Robert Oster's Motor Oil - 2ml, showing a dark brown, almost black, fountain pen ink with THE DESK BANDIT printed below.

Motor Oil - 2ml

$1.70

More Details →

Caffe Crema - 50ml bottle of Robert Oster Signature fountain-pen ink, featuring a rust-brown swatch, inspired by South Australia's wine regions.

Caffe Crema - 50ml

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$23.00

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Caffe Crema - 50ml bottle of Robert Oster Signature fountain-pen ink, featuring a rust-brown swatch, inspired by South Australia's wine regions.

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Caffe Crema - 50ml

$23.00

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Grun Gilt (Shake 'N' Shimmy) - 2ml ink sample, featuring shimmery, textured metallic gold swatch, perfect for testing fountain pen ink color and flow.

Grun Gilt (Shake 'N' Shimmy) - 2ml

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$2.00

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Grun Gilt (Shake 'N' Shimmy) - 2ml ink sample, featuring shimmery, textured metallic gold swatch, perfect for testing fountain pen ink color and flow.

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Grun Gilt (Shake 'N' Shimmy) - 2ml

$2.00

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Smokescreen - 2ml ink sample by Robert Oster, featuring a deep reddish-purple hue with black mottling, displayed as a liquid pigment swatch on white paper.

Smokescreen - 2ml

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$1.70

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Smokescreen - 2ml ink sample by Robert Oster, featuring a deep reddish-purple hue with black mottling, displayed as a liquid pigment swatch on white paper.

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Smokescreen - 2ml

$1.70

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Robert Oster Aussie Brown - 2ml Ink Samples

Aussie Brown - 2ml

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$1.70

X

Robert Oster Aussie Brown - 2ml Ink Samples

Aussie Brown - 2ml

$1.70

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Maroon 1789 - 2ml ink sample by Robert Oster, showcasing a rich burgundy tone with darker pigment pools, labeled THE DESK BANDIT watermark.

Maroon 1789 - 2ml

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$1.70

X

Maroon 1789 - 2ml ink sample by Robert Oster, showcasing a rich burgundy tone with darker pigment pools, labeled THE DESK BANDIT watermark.

Maroon 1789 - 2ml

$1.70

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Earth - 2ml

Earth - 2ml

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$1.70

X

Earth - 2ml

/ 1 / 2

Earth - 2ml

$1.70

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Bronze - 2ml ink sample: An abstract vertical blot in deep brown/near-black with subtle tonal variations, featuring The Desk Bandit watermark, representing Robert Oster's dye-based ink.

Bronze - 2ml

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$1.70

X

Bronze - 2ml ink sample: An abstract vertical blot in deep brown/near-black with subtle tonal variations, featuring The Desk Bandit watermark, representing Robert Oster's dye-based ink.

Bronze - 2ml

$1.70

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Australis Oak (2ml) - The Desk Bandit

Australis Oak - 2ml

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$1.70

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Australis Oak (2ml) - The Desk Bandit

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Australis Oak - 2ml

$1.70

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Close-up of a dark brown ink swatch labeled The Desk Bandit, showcasing the Robert Oster Golden Brown - 2ml fountain pen ink sample on white paper.

Golden Brown - 2ml

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$1.70

X

Close-up of a dark brown ink swatch labeled The Desk Bandit, showcasing the Robert Oster Golden Brown - 2ml fountain pen ink sample on white paper.

Golden Brown - 2ml

$1.70

More Details →

Choc Pudding (2ml) - The Desk Bandit

Choc Pudding - 2ml

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$1.70

X

Choc Pudding (2ml) - The Desk Bandit

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Choc Pudding - 2ml

$1.70

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Robert Oster Terra Australis (Shake 'N' Shimmy) - 2ml Ink Sample

Terra Australis (Shake 'N' Shimmy) - 2ml

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$2.00

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Robert Oster Terra Australis (Shake 'N' Shimmy) - 2ml Ink Sample

/ 1 / 2

Terra Australis (Shake 'N' Shimmy) - 2ml

$2.00

More Details →

Gold Antiqua - 50ml bottle of Robert Oster Signature fountain-pen ink, featuring a rich, warm brown swatch highlighting its unique shading inspired by South Australia.

Gold Antiqua - 50ml

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$23.00

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Gold Antiqua - 50ml bottle of Robert Oster Signature fountain-pen ink, featuring a rich, warm brown swatch highlighting its unique shading inspired by South Australia.

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Gold Antiqua - 50ml

$23.00

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Whiskey - 2ml

Whiskey - 2ml

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$1.70

X

Whiskey - 2ml

/ 1 / 2

Whiskey - 2ml

$1.70

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Robert Oster Signature Toffee ink, 50ml bottle with black ribbed cap and gold label, showcases a warm coppery-brown hue, inspired by South Australia's palette.

Toffee - 50ml

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$23.00

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Robert Oster Signature Toffee ink, 50ml bottle with black ribbed cap and gold label, showcases a warm coppery-brown hue, inspired by South Australia's palette.

/ 1 / 2

Toffee - 50ml

$23.00

More Details →

Marrone Mustard - 2ml ink sample, dark brown blot on white, featuring The Desk Bandit watermark, representing Robert Oster's dye-based ink.

Marrone Mustard - 2ml

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$1.70

X

Marrone Mustard - 2ml ink sample, dark brown blot on white, featuring The Desk Bandit watermark, representing Robert Oster's dye-based ink.

Marrone Mustard - 2ml

$1.70

More Details →

Muddy Sand - 2ml

Muddy Sand - 2ml

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$1.70

X

Muddy Sand - 2ml

/ 1 / 2

Muddy Sand - 2ml

$1.70

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Dark Chocolate (2ml) - The Desk Bandit

Dark Chocolate - 2ml

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$1.70

X

Dark Chocolate (2ml) - The Desk Bandit

/ 1 / 2

Dark Chocolate - 2ml

$1.70

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Sepia Nights - 2ml

Sepia Nights - 2ml

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$1.70

X

Sepia Nights - 2ml

/ 1 / 2

Sepia Nights - 2ml

$1.70

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Muddy Bucket - 2ml

Muddy Bucket - 2ml

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$1.70

X

Muddy Bucket - 2ml

/ 1 / 2

Muddy Bucket - 2ml

$1.70

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Robert Oster Signature fountain-pen ink in Motor Oil, 50ml bottle, features a swatch displaying its unique shade inspired by South Australian wine regions.

Motor Oil - 50ml

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$23.00

X

Robert Oster Signature fountain-pen ink in Motor Oil, 50ml bottle, features a swatch displaying its unique shade inspired by South Australian wine regions.

Motor Oil - 50ml

$23.00

More Details →

Smokescreen - 50ml bottle of Robert Oster Signature dye-based ink, featuring a circular swatch of its unique color, inspired by South Australia's wine regions.

Smokescreen - 50ml

-

$23.00

X

Smokescreen - 50ml bottle of Robert Oster Signature dye-based ink, featuring a circular swatch of its unique color, inspired by South Australia's wine regions.

Smokescreen - 50ml

$23.00

More Details →

Burned Orange - 50ml Robert Oster Signature fountain-pen ink bottle beside a swatch of its coppery-brown hue, inspired by South Australia's natural palette.

Burned Orange - 50ml

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$23.00

X

Burned Orange - 50ml Robert Oster Signature fountain-pen ink bottle beside a swatch of its coppery-brown hue, inspired by South Australia's natural palette.

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Burned Orange - 50ml

$23.00

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Kansas City - 2ml

Kansas City - 2ml

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$1.70

X

Kansas City - 2ml

/ 1 / 2

Kansas City - 2ml

$1.70

More Details →

Australis Oak - 50ml - The Desk Bandit

Australis Oak - 50ml

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$23.00

X

Australis Oak - 50ml - The Desk Bandit

/ 1 / 2

Australis Oak - 50ml

$23.00

More Details →

Robert Oster Melon Tea - 50ml Bottled Ink

Melon Tea - 50ml

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$23.00

X

Robert Oster Melon Tea - 50ml Bottled Ink

/ 1 / 2

Melon Tea - 50ml

$23.00

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Robert Oster Terra Australis (Shake 'N' Shimmy) - 50ml Bottled Ink

Terra Australis (Shake 'N' Shimmy) - 50ml

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$31.00

X

Robert Oster Terra Australis (Shake 'N' Shimmy) - 50ml Bottled Ink

/ 1 / 2

Terra Australis (Shake 'N' Shimmy) - 50ml

$31.00

More Details →

Marrone Mustard - 50ml Robert Oster Signature fountain-pen ink in a black bottle with a gold-foil label, showcasing a warm, rusty-brown ink color.

Marrone Mustard - 50ml

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$23.00

X

Marrone Mustard - 50ml Robert Oster Signature fountain-pen ink in a black bottle with a gold-foil label, showcasing a warm, rusty-brown ink color.

Marrone Mustard - 50ml

$23.00

More Details →

Earth - 50ml

Earth - 50ml

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$23.00

X

Earth - 50ml

/ 1 / 2

Earth - 50ml

$23.00

More Details →

Choc Pudding (Holiday 2020) - 50ml - The Desk Bandit

Choc Pudding (Holiday 2020) - 50ml

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$23.00

X

Choc Pudding (Holiday 2020) - 50ml - The Desk Bandit

/ 1 / 2

Choc Pudding (Holiday 2020) - 50ml

$23.00

More Details →

Robert Oster Grun Gilt (Shake 'N' Shimmy) - 50ml Bottled Ink

Grun Gilt (Shake 'N' Shimmy) - 50ml

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$31.00

X

Robert Oster Grun Gilt (Shake 'N' Shimmy) - 50ml Bottled Ink

/ 1 / 2

Grun Gilt (Shake 'N' Shimmy) - 50ml

$31.00

More Details →

Robert Oster Signature fountain-pen ink in Aussie Brown, 50ml bottle, features a ribbed black cap and a gold-foil label, displaying its unique color swatch.

Aussie Brown - 50ml

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$23.00

X

Robert Oster Signature fountain-pen ink in Aussie Brown, 50ml bottle, features a ribbed black cap and a gold-foil label, displaying its unique color swatch.

Aussie Brown - 50ml

$23.00

More Details →

Sepia Nights - 50ml

Sepia Nights - 50ml

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$23.00

X

Sepia Nights - 50ml

/ 1 / 2

Sepia Nights - 50ml

$23.00

More Details →

Burned Orange - 2ml ink swatch, showcasing a watercolor wash with a rich, rusty-orange hue, embodying Robert Oster's unique Australian palette inspiration.

Burned Orange - 2ml

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$1.70

X

Burned Orange - 2ml ink swatch, showcasing a watercolor wash with a rich, rusty-orange hue, embodying Robert Oster's unique Australian palette inspiration.

/ 1 / 2

Sold Out

Burned Orange - 2ml

$1.70

This product is sold out

More Details →

Chocolate - 2ml

-

$1.70

X

Sold Out

Chocolate - 2ml

$1.70

This product is sold out

More Details →

Robert Oster Signature fountain-pen ink, Bronze - 50ml bottle with a color swatch inset, inspired by South Australia's wine regions.

Bronze - 50ml

-

$23.00

X

Robert Oster Signature fountain-pen ink, Bronze - 50ml bottle with a color swatch inset, inspired by South Australia's wine regions.

/ 1 / 2

Sold Out

Bronze - 50ml

$23.00

This product is sold out

More Details →

Whiskey - 50ml

Whiskey - 50ml

-

$23.00

X

Whiskey - 50ml

/ 1 / 2

Sold Out

Whiskey - 50ml

$23.00

This product is sold out

More Details →

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