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Robert Oster Signature Ink(50ml) Fountain Pen Ink

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Robert Oster Signature Ink(50ml) Fountain Pen Ink robert_oster_signature_earth_fire_water_wind_inks_dec_2023

About the Robert Oster Signature Ink(50ml)

The Robert Oster Signature ink comes in a 50ml recyclable PET bottle in a wide selection of colors. The ink, as well as the packaging, are all environmentally friendly. Imported from Australia with colors from the country’s palette, the Robert Oster inks have become very popular among fountain pen users.

Important Note About Fountain Pen Inks: Many fountain pen inks have shading and sheening traits that may not be seen during every application. Shading and sheening (and other special traits) often depend on penmanship, what type of pen, brush, etc. is used to apply the ink, and the level of ink saturation.

Product Specifications

Cartridge Type: Bottled Ink

Available Sizes & Colors

The Robert Oster Signature Ink(50ml) Fountain Pen Ink usually ships within 1-3 business day unless otherwise specified or marked as special order.

* Special orders typically ship in 14-17 business days. However, occasionally due to manufacturer inventory, items can take up to 1-3 months. For a specific shipping estimate on your special order contact Customer Care.

Guaranteed Quality
Each Robert Oster Signature Ink(50ml) Fountain Pen Ink we sell is guaranteed to be genuine, authentic and will arrive brand new & unused!

Robert Oster Signature Ink(50ml) Color Chart

Robert Oster Signature Ink(50ml) Reviews

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4.8

out of 5
(69 reviews)

This is the first Rob't Oster ink I've tried and I love it! Australian Sky Blue is a bright, vibrant, and saturated cerulean blue ink that is unlike any other blue ink I have (I usually lean toward the darker blues/teals). Though no special properties, this has real impact on the page, seems to flow well, and is over-all very well behaved even on some not-so-great paper. I am currently using it in a Conklin Coronet with a Fine nib.

Stephanie
Cotati, CA

5 out of 5

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Robert Oster's inks are my favorite.. perhaps right besides Iroshizuku's.
Fire and Ice is a fantastic, vibrant blue that shades beautifully. This color and Blue water Ice are a must have in your collection.

Aishwarya
Casa Grande, AZ

5 out of 5

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My go to range of inks for new colors.

Sharon
Cape Town, Western Cape

5 out of 5

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I've put this into my Opus Demonstrator, and I love it. The shading is phenomenal. The color is really rich and has a lot of contrast, which is wonderful.

Robbie
Oxford, MS

5 out of 5

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It's Robert Oster, so I know I'll like it. 99% of all RO inks work beautifully for me; it's the shimmer inks that can be really dry or act up. I love the colors and the inks. Not so enamored with the bottles, but they make the ink safer to ship and are lighter than glass. The bottles are also tinted to protect the ink but can make it a little harder to see which ink you are grabbing. You get a lot of high quality ink, I just wish the price point was a bit lower; that's why I buy my ink here at Pen Chalet.

Jeannette
San Diego, CA

5 out of 5

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Robert Oster makes some of the highest quality ink on the market. I just wish the opening were a bit bigger. Not a gripe. Just gotta be more cautious filling.

Robert
Wink, TX

5 out of 5

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Nice colors but don't care for the plastic bottle.

Fritzi
PARIS, IL

3 out of 5

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Dependably lovely colors that flow perfectly wet through my broad nib pens. They’re pricey, probably above average in cost regards, but good inks.

Edward
Reston, VA

4 out of 5

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I have a obsession with RO inks… I’ve tried probably 30-40 inks of theirs and own about 20 full size bottles and am in love with every single one. Each one has its own special wow factor though due to the large range, some base colors do look really similar with varying shading and sheening colors which is why I have 20 instead of all 40 full sizes lol. But I’ve only mainly explored their blues and purples. So I probably will end up with more then 40 of their full size inks in the near future once I get to the other color families.

Shahania
Randolph, MA

5 out of 5

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I like this brand, it’s a good quality and their colors are lovely.

Helena
San Francisco, CA

5 out of 5

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