Robert Oster Signature Ink(50ml) Fountain Pen Ink Reviews
I love these inks. The shades are unique and often have high shading qualities and halo-ing. My favourites are blue water ice, bondi blue, cherry blossom and African gold.
overall: 5 out of 5

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Ridiculously wet ink. Turns a Lamy Studio into a Visconti-like “firehose”. I got the Eucalyptus leaf, and it’s an excellent green color. Bottle is pretty big, and great shape for filling.
overall: 5 out of 5

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Tried a couple of these inks (Aqua, Blue Sea) less than a year ago, and I was immediately hooked. Great colors, good shading, some sheen like heck (I'm looking at you, Fire and Ice), and consistent performance in all of my pens. My second favorite ink manufacturer (behind Sailor, just ahead of Pilot).
overall: 5 out of 5

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nice
overall: 5 out of 5

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I bought this in River of Fire. It's quite green. I don't notice any sheening qualities, but it's a nice ink. It seems a bit more wet than some of my other inks, but I like how easy it flows.
overall: 4 out of 5

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Beautiful color blue. Haven't filled a pen yet. So far have only tested with a dip pen. Performed well. Got a nice long line and did get a little of the red shading writing on Tomoe River paper.
overall: 5 out of 5

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Great ink, very vibrant blue, Almost Turquoise with a nice red outer lining on good paper. Well behaved and high color saturation with shading.
overall: 5 out of 5

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This is a great blue ink. I have been using it as an everyday ink for now.The color is really eye-catching.
overall: 5 out of 5

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For those who like or can appreciate muted, dusty colors, this is a beautiful ink. While it may not be suitable in a business setting, it would make a great addition to your ink collection for journaling or personal coorespondence. I used a Lamy 27 with a broad nib and got some beautiful shading.
overall: 5 out of 5

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This is a great colorful ink. A beautiful shade of blue, especially with a wider nib such as a stub.
I just love the color. Wonderful
I just love the color. Wonderful
overall: 5 out of 5

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