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

$23.00

Robert Oster

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Kids On The Block - 50ml
Robert Oster
Kids On The Block - 50ml
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$23.00
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Kids On The Block - 50ml
/ 1 / 2

Kids On The Block - 50ml

$23.00

Robert Oster

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Midnight Sapphire - 50ml fountain-pen ink by Robert Oster, featuring a gold-labeled black bottle with a round swatch of deep blue-purple color.
Robert Oster
Midnight Sapphire - 50ml
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$23.00
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Midnight Sapphire - 50ml fountain-pen ink by Robert Oster, featuring a gold-labeled black bottle with a round swatch of deep blue-purple color.
/ 1 / 2

Midnight Sapphire - 50ml

$23.00

Robert Oster

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Robert Oster Water (Shake 'N' Shimmy) - 50ml shimmery blue fountain pen ink, handmade in Australia, showcased with an ink swatch displaying vibrant color and shimmer.
Robert Oster
Water (Shake 'N' Shimmy) - 50ml
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$31.00
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Robert Oster Water (Shake 'N' Shimmy) - 50ml shimmery blue fountain pen ink, handmade in Australia, showcased with an ink swatch displaying vibrant color and shimmer.
/ 1 / 2

Water (Shake 'N' Shimmy) - 50ml

$31.00

Robert Oster

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Robert Oster Tinseltown (Shake 'N' Shimmy) fountain pen ink, 50ml bottle, showcasing a shimmery purple-blue hue for vibrant writing and sketching.
Robert Oster
Tinseltown (Shake 'N' Shimmy) - 50ml
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$31.00
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Robert Oster Tinseltown (Shake 'N' Shimmy) fountain pen ink, 50ml bottle, showcasing a shimmery purple-blue hue for vibrant writing and sketching.
/ 1 / 2

Tinseltown (Shake 'N' Shimmy) - 50ml

$31.00

Robert Oster

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Robert Oster Signature fountain pen ink, The Grinch (Shake 'N' Shimmy) - 50ml, featuring shimmering silvery sparkle, ideal for expressive, sustainable writing.
Robert Oster
The Grinch (Shake 'N' Shimmy) - 50ml
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$31.00
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Robert Oster Signature fountain pen ink, The Grinch (Shake 'N' Shimmy) - 50ml, featuring shimmering silvery sparkle, ideal for expressive, sustainable writing.
/ 1 / 2

The Grinch (Shake 'N' Shimmy) - 50ml

$31.00

Robert Oster

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Ten Dollar Blue - 50ml
Robert Oster
Ten Dollar Blue - 50ml
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$23.00
X
Ten Dollar Blue - 50ml
/ 1 / 2

Ten Dollar Blue - 50ml

$23.00

Robert Oster

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Robert Oster Blue Moon (Shake 'N' Shimmy) - 50ml Bottled Ink
Robert Oster
Blue Moon (Shake 'N' Shimmy) - 50ml
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$31.00
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Robert Oster Blue Moon (Shake 'N' Shimmy) - 50ml Bottled Ink
/ 1 / 2

Blue Moon (Shake 'N' Shimmy) - 50ml

$31.00

Robert Oster

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Frankly Blue - 50ml Robert Oster Signature fountain-pen ink with deep blue color and red-purple sheen, inspired by South Australia's wine regions.
Robert Oster
Frankly Blue - 50ml
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$23.00
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Frankly Blue - 50ml Robert Oster Signature fountain-pen ink with deep blue color and red-purple sheen, inspired by South Australia's wine regions.

Frankly Blue - 50ml

$23.00

Robert Oster

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new Robert Oster Signature Ink - Sinner's Dream (Shake 'N' Shimmy), 50ml bottle, with a swatch displaying its blue-teal, silver-shimmer color.
Robert Oster
Sinner's Dream (Shake 'N' Shimmy) - 50ml
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$31.00
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Robert Oster Signature Ink - Sinner's Dream (Shake 'N' Shimmy), 50ml bottle, with a swatch displaying its blue-teal, silver-shimmer color.
/ 1 / 2

Sinner's Dream (Shake 'N' Shimmy) - 50ml

$31.00

Robert Oster

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Robert Oster Signature Ink - Steely Days, 50ml bottle, featuring a blue-green/teal swatch, ideal for vibrant, smooth writing with excellent shading.
Robert Oster
Steely Days - 50ml
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$23.00
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Robert Oster Signature Ink - Steely Days, 50ml bottle, featuring a blue-green/teal swatch, ideal for vibrant, smooth writing with excellent shading.
/ 1 / 2

Steely Days - 50ml

$23.00

Robert Oster

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Blue Martini - 50ml
Robert Oster
Blue Martini - 50ml
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$23.00
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Blue Martini - 50ml
/ 1 / 2

Blue Martini - 50ml

$23.00

Robert Oster

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Muddy Water - 50ml
Robert Oster
Muddy Water - 50ml
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$23.00
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Muddy Water - 50ml
/ 1 / 2

Muddy Water - 50ml

$23.00

Robert Oster

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Chicago - 50ml
Robert Oster
Chicago - 50ml
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$23.00
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Chicago - 50ml
/ 1 / 2

Chicago - 50ml

$23.00

Robert Oster

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Miami - 50ml
Robert Oster
Miami - 50ml
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$23.00
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Miami - 50ml
/ 1 / 2

Miami - 50ml

$23.00

Robert Oster

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