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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Close-up swatch of Robert Oster's Fire Engine Red - 2ml ink, showing a deep center with feathered edges and a subtle Desk Bandit watermark.
Robert Oster
Fire Engine Red - 2ml
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$1.70
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Close-up swatch of Robert Oster's Fire Engine Red - 2ml ink, showing a deep center with feathered edges and a subtle Desk Bandit watermark.

Fire Engine Red - 2ml

$1.70

Robert Oster

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Direct Sun - 2ml ink sample by Robert Oster, featuring an abstract red swatch with tonal variations on white paper, with THE DESK BANDIT watermark.
Robert Oster
Direct Sun - 2ml
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$1.70
X
Direct Sun - 2ml ink sample by Robert Oster, featuring an abstract red swatch with tonal variations on white paper, with THE DESK BANDIT watermark.

Direct Sun - 2ml

$1.70

Robert Oster

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Clay Red - 2ml ink sample swatch, featuring irregular shape with darker edges, on white background. Faint “The Desk Bandit” watermark visible.
Robert Oster
Clay Red - 2ml
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$1.70
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Clay Red - 2ml ink sample swatch, featuring irregular shape with darker edges, on white background. Faint “The Desk Bandit” watermark visible.

Clay Red - 2ml

$1.70

Robert Oster

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Dusky Pink - 2ml ink sample, showcasing a deep burgundy/maroon watercolor wash with feathered edges and tonal variations, representing Robert Oster's dye-based ink.
Robert Oster
Dusky Pink - 2ml
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$1.70
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Dusky Pink - 2ml ink sample, showcasing a deep burgundy/maroon watercolor wash with feathered edges and tonal variations, representing Robert Oster's dye-based ink.
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Dusky Pink - 2ml

$1.70

Robert Oster

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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.
Robert Oster
Maroon 1789 - 2ml
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$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

$1.70

Robert Oster

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Rubine - 2ml ink sample by Robert Oster, featuring a vivid red pigment blotch on a white background, with a faint THE DESK BANDIT watermark.
Robert Oster
Rubine - 2ml
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$1.70
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Rubine - 2ml ink sample by Robert Oster, featuring a vivid red pigment blotch on a white background, with a faint THE DESK BANDIT watermark.

Rubine - 2ml

$1.70

Robert Oster

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Sushi - 2ml ink sample: A deep red, watercolor-like swatch with soft edges, showcasing the vibrant hue of Robert Oster's fountain pen ink.
Robert Oster
Sushi - 2ml
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$1.70
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Sushi - 2ml ink sample: A deep red, watercolor-like swatch with soft edges, showcasing the vibrant hue of Robert Oster's fountain pen ink.
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Sushi - 2ml

$1.70

Robert Oster

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Abstract deep red pigment wash resembling a watercolor ink blot, representing Robert Oster's Red Candy - 2ml fountain pen ink sample.
Robert Oster
Red Candy - 2ml
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$1.70
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Abstract deep red pigment wash resembling a watercolor ink blot, representing Robert Oster's Red Candy - 2ml fountain pen ink sample.
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Red Candy - 2ml

$1.70

Robert Oster

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Swatch of Robert Oster's Crimson - 2ml, showcasing pooling and shading effects on white paper, with The Desk Bandit watermark visible.
Robert Oster
Crimson - 2ml
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$1.70
X
Swatch of Robert Oster's Crimson - 2ml, showcasing pooling and shading effects on white paper, with The Desk Bandit watermark visible.

Crimson - 2ml

$1.70

Robert Oster

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Lipstick Red - 2ml ink sample featuring a burgundy-red blot with darker edges by Robert Oster, logo THE DESK BANDIT at the bottom.
Robert Oster
Lipstick Red - 2ml
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$1.70
X
Lipstick Red - 2ml ink sample featuring a burgundy-red blot with darker edges by Robert Oster, logo THE DESK BANDIT at the bottom.

Lipstick Red - 2ml

$1.70

Robert Oster

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Swatch of Robert Oster's Burgundy ink in 2ml, showing deep red hues with darker pooled areas and irregular edges on white paper.
Robert Oster
Burgundy - 2ml
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$1.70
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Swatch of Robert Oster's Burgundy ink in 2ml, showing deep red hues with darker pooled areas and irregular edges on white paper.

Burgundy - 2ml

$1.70

Robert Oster

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Swatch of Robert Oster's Whisper Red ink, 2ml sample, displaying varied tone intensity on a white background, highlighting its dye-based pigment characteristics.
Robert Oster
Whisper Red - 2ml
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$1.70
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Swatch of Robert Oster's Whisper Red ink, 2ml sample, displaying varied tone intensity on a white background, highlighting its dye-based pigment characteristics.
/ 1 / 2

Whisper Red - 2ml

$1.70

Robert Oster

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Blood Crimson - 2ml fountain pen ink sample, showcasing a deep red, irregular swatch with tonal variations, perfect for testing color and flow.
Robert Oster
Blood Crimson - 2ml
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$1.70
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Blood Crimson - 2ml fountain pen ink sample, showcasing a deep red, irregular swatch with tonal variations, perfect for testing color and flow.
/ 1 / 2

Blood Crimson - 2ml

$1.70

Robert Oster

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Frankly Scarlet - 2ml ink sample, displaying a deep burgundy-red wash with subtle variations, highlighting Robert Oster's dye-based pigment on paper.
Robert Oster
Frankly Scarlet - 2ml
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$1.70
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Frankly Scarlet - 2ml ink sample, displaying a deep burgundy-red wash with subtle variations, highlighting Robert Oster's dye-based pigment on paper.
/ 1 / 2

Frankly Scarlet - 2ml

$1.70

Robert Oster

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Robert Oster's Royal Red - 2ml ink sample swatch on white paper, showcasing its rich pigment and shading with The Desk Bandit watermark faintly visible.
Robert Oster
Royal Red - 2ml
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$1.70
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Robert Oster's Royal Red - 2ml ink sample swatch on white paper, showcasing its rich pigment and shading with The Desk Bandit watermark faintly visible.

Royal Red - 2ml

$1.70

Robert Oster

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Red Orange - 2ml ink sample, featuring an abstract red-orange splash on white. The Desk Bandit watermark subtly appears at the bottom.
Robert Oster
Red Orange - 2ml
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$1.70
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Red Orange - 2ml ink sample, featuring an abstract red-orange splash on white. The Desk Bandit watermark subtly appears at the bottom.

Red Orange - 2ml

$1.70

Robert Oster

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Robert Oster Signature Fountain Pen Ink in Fire Engine Red, 50ml bottle, features a gold label and a bright red ink swatch.
Robert Oster
Fire Engine Red - 50ml
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$23.00
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Robert Oster Signature Fountain Pen Ink in Fire Engine Red, 50ml bottle, features a gold label and a bright red ink swatch.

Fire Engine Red - 50ml

$23.00

Robert Oster

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Robert Oster Signature fountain-pen ink, Direct Sun - 50ml, with a swatch showcasing its rich red hue, inspired by South Australia's wine regions.
Robert Oster
Direct Sun - 50ml
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$23.00
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Robert Oster Signature fountain-pen ink, Direct Sun - 50ml, with a swatch showcasing its rich red hue, inspired by South Australia's wine regions.

Direct Sun - 50ml

$23.00

Robert Oster

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Robert Oster Signature Clay Red fountain-pen ink, 50ml bottle, with a deep red-black swatch, inspired by South Australia's wine regions.
Robert Oster
Clay Red - 50ml
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$23.00
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Robert Oster Signature Clay Red fountain-pen ink, 50ml bottle, with a deep red-black swatch, inspired by South Australia's wine regions.
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Clay Red - 50ml

$23.00

Robert Oster

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Robert Oster Red Candy - 50ml fountain pen ink in a black glass bottle with a gold label, plus a deep red ink swatch nearby.
Robert Oster
Red Candy - 50ml
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$23.00
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Robert Oster Red Candy - 50ml fountain pen ink in a black glass bottle with a gold label, plus a deep red ink swatch nearby.
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Red Candy - 50ml

$23.00

Robert Oster

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Robert Oster Sushi - 50ml Bottled Ink
Robert Oster
Sushi - 50ml
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$23.00
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Robert Oster Sushi - 50ml Bottled Ink
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Sushi - 50ml

$23.00

Robert Oster

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Robert Oster Rubine - 50ml Bottled Ink
Robert Oster
Rubine - 50ml
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$23.00
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Robert Oster Rubine - 50ml Bottled Ink
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Rubine - 50ml

$23.00

Robert Oster

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Dusky Pink - 50ml Robert Oster Signature fountain-pen ink bottle with a black cap and gold label, alongside a circular swatch of deep burgundy/red-purple ink.
Robert Oster
Dusky Pink - 50ml
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$23.00
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Dusky Pink - 50ml Robert Oster Signature fountain-pen ink bottle with a black cap and gold label, alongside a circular swatch of deep burgundy/red-purple ink.
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Dusky Pink - 50ml

$23.00

Robert Oster

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Santa's Hangover (Holiday 2020) - 50ml - The Desk Bandit
Robert Oster
Santa's Hangover (Holiday 2020) - 50ml
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$23.00
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Santa's Hangover (Holiday 2020) - 50ml - The Desk Bandit
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Santa's Hangover (Holiday 2020) - 50ml

$23.00

Robert Oster

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Robert Oster Red Orange - 50ml Bottled Ink
Robert Oster
Red Orange - 50ml
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$23.00
X
Robert Oster Red Orange - 50ml Bottled Ink
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Red Orange - 50ml

$23.00

Robert Oster

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Frankly Scarlet - 50ml bottle of Robert Oster Signature fountain-pen ink, featuring a dark burgundy/red shade swatch in the upper right corner.
Robert Oster
Frankly Scarlet - 50ml
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$23.00
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Frankly Scarlet - 50ml bottle of Robert Oster Signature fountain-pen ink, featuring a dark burgundy/red shade swatch in the upper right corner.
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Frankly Scarlet - 50ml

$23.00

Robert Oster

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Robert Oster Signature Whisper Red fountain-pen ink, 50ml. Tall black bottle with gold label, ribbed cap, and burgundy-red ink swatch displayed.
Robert Oster
Whisper Red - 50ml
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$23.00
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Robert Oster Signature Whisper Red fountain-pen ink, 50ml. Tall black bottle with gold label, ribbed cap, and burgundy-red ink swatch displayed.
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Whisper Red - 50ml

$23.00

Robert Oster

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Robert Oster Signature Ink, Crimson - 50ml, in a cylindrical bottle with a ribbed cap and gold label, paired with a rich red ink swatch.
Robert Oster
Crimson - 50ml
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$23.00
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Robert Oster Signature Ink, Crimson - 50ml, in a cylindrical bottle with a ribbed cap and gold label, paired with a rich red ink swatch.
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Crimson - 50ml

$23.00

Robert Oster

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new Robert Oster Signature Sinner's Blood fountain pen ink, 50ml bottle, showcasing a deep red/maroon swatch, known for sustainable, vibrant Australian-made craftsmanship.
Robert Oster
Sinner's Blood - 50ml
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$23.00
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Robert Oster Signature Sinner's Blood fountain pen ink, 50ml bottle, showcasing a deep red/maroon swatch, known for sustainable, vibrant Australian-made craftsmanship.
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Sinner's Blood - 50ml

$23.00

Robert Oster

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Muddy Dragon - 50ml
Robert Oster
Muddy Dragon - 50ml
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$23.00
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Muddy Dragon - 50ml
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Muddy Dragon - 50ml

$23.00

Robert Oster

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New York - 50ml
Robert Oster
New York - 50ml
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$23.00
X
New York - 50ml
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New York - 50ml

$23.00

Robert Oster

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Robert Oster Terracotta - 50ml Bottled Ink
Robert Oster
Terracotta - 50ml
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$23.00
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Robert Oster Terracotta - 50ml Bottled Ink
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Terracotta - 50ml

$23.00

Robert Oster

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Lipstick Red - 50ml Robert Oster Signature fountain-pen ink in a black glass bottle with a gold-foil label and color swatch inset.
Robert Oster
Lipstick Red - 50ml
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$23.00
X
Lipstick Red - 50ml Robert Oster Signature fountain-pen ink in a black glass bottle with a gold-foil label and color swatch inset.
/ 1 / 2

Lipstick Red - 50ml

$23.00

Robert Oster

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