It's a lovely color, but I wish I'd known how feathery it is compared to Diamine and R. Oster. I've gotten a sample of LAMY Petrol, which I hope will give me that teal-black I'm looking for without feathering like a molting ostrich on the paper I use.

Glad I only bought a sample instead of a bottle. The color is lovely, but I've never seen an ink feather so badly on paper that has behaved beautifully with multiple colors of Diamine and R. Oster. I think I'll stick with those two brands and see if I can find a comparable color to this one.

This was part of my search for the perfect blue/black ink. This isn't it but it still is great. I mainly use lousy 20lb printer paper and it works fine. I've only used it in a modern pricey German safety pen so I haven't really pushed it with a good flex nib. On good paper my guess is it will do even better.

This ink flows smoothly and has a beautiful blue-black color, leaning more toward teal than purple. The color from my fine-point pens was a bit grayer than what appears in the sample on this page. The ink only disappointed me when I put a drop of water on the dry writing and the ink disappeared. If it had left any trace at all I would have given it a fourth star.

I was really pleasantly surprised with this ink. I've quested high and low for the perfect blue-black, and this is now in my top 3. Just a hint of green (which I would normally never use); looks great wet and dry. It's one of those rare inks that looks extremely professional--conservative, even subdued--and yet immediately distinctive.

Wow, this is a luscious ink. It flows well -- wet but not too wet. It is saturated and **** and bold and professional. This is *always* be in one of my pens.

This ink won't get more than three stars from me in its stock form, but when you diluted it it turns into a heavily shading, gorgeous muted green.

True black green, just what I wanted in a black green. Will definitely get a bottle.

The color of this ink is complex, unique, and altogether much more interesting than most blues. Additionally, it writes well in both vintage and contemporary pens, from what I've seen. I highly recommend this distinctive ink- I can't say enough good things about it.

I had thought this would be more green so I was like ah whatever (don't care for green too much) but after trying it I like the ending results. It was more like a dark blue grey in my opinion. It flows smoothly and nicely, is well lubricated. Looks good for casual or in the office place. Thanks Goulets!

Roher Verdigris. Love this ink. I can't help but compare it to 54th Massachusetts. It looks green in the bottle , and looks green as it goes down, but dries with a dark Blue Black. It was actually more consistently blue than 54M's green on some papers. It goes on wetter and smoother than the few Noodler inks l've tried. It was trailing 54M only from permenance as it's not as waterproof as the bulletproof ink. But I found myself justifying how l didn't need waterproof, l like it so well. It has taken the top spot for me. lt's exactly the Blue Black l was looking for, writes well and is very dark but is enough Blue to stand out against black ink.

Performs wonderfully on Rhodia, but feathers a lot on cheaper papers. This ink color reminds me of Iroshizuku Tsuki-yo, which I tend to prefer over Verdigris, especially since the Tsuki-yo displays no feathering on my cheaper papers. If you are looking for an ink comparable to the Iroshizuku yet at less than half the price, I would recommend this ink!

Blue green shading..good shading and flows well..can be used in business as an everyday ink...not water resistant.. Too bad.

It is a very attractive color but in my Lamy Safari fine nib on Clairefontaine paper, the color leans more to blue than to green as it appears on the swab. Otherwise I would have given it 5 stars, (which I to date have only awarded to Iroshizuku inks). It flow easily and evenly and dries quickly with good saturation. It is very high quality.

Nice dark teal, lots of feathering., especially on lower quality paper. On Rhodia or similar, there's no feathering at all. I have this loaded into my 1950's Eversharp Symphony 713. I haven't cleaned it out yet, but apparently these inks are easy to clean. I like that characteristic, especially because it's in a vintage pen with a lever/sac filler, which my Noodler's Bad Blue Heron was not exactly easy to get out.