You will see from my other reviews that I am an avid user of fountain pens and gorgeous inks, and this ink is no exception to that rule. Firstly, to clear something up (seller pse note) it's R&K Verdigris (not grease), and as such it is a very subtle blue black, (through a fine nib) and a gorgeous greeny blue black with shading that makes you smile through a medium or broad nib. I love this ink and can sit all evening using it for note taking or general correspondence. Classy enough to use for business writing, R&K inks are famous for their ease of flushing out of pens once they need a refill. I have a Platinum clear demonstrator pen that was stained awfully by a well known English ink that took ages to clean out with water and ammonia - whereas a change after a month with an R&K ink needed only two flushes with warm water to clean it perfectly. If you are looking for an uberclassy blue black that errs on the side of green, please consider this ink, and if you love pens and ink and paper and you are looking for a lovely BB ink that will flow with ease, and look lovely on the page, this is one ink that you need on your ink shelf. I currently use this ink in a TWSBI 580 clear demonstrator (buy one!!) and it is never out of my pen rotation. As with other R&K inks, it is freeflowing, has minimum feathering and hardly any bleedthrough except on the cheapest of papers. It has performed flawlessly on any paper above 80gsm. It's a gorgeous ink, buy it with confidence. Edit 17/6/15. I have to come back to tidy this review up a bit, as I've found that the more pens I put this ink through, the more it is, in fact, a lovely deep green with blue undertones - the extra fine nib I was using when I originally put up this review showed it to be extremely dark, nearly blue black. I've since used this ink in a Platinum 3776 medium nib, an Aurora Archiviste, and three Delta pens, (all fine nibs) and the ink through these pens is an intense green blue that looks stunning on the page. So nice to look at it now is one of my four favourite inks. Buy it with confidence, it really is a classy, graceful ink on the page, and although I don't sketch, I have a friend that does, and she raves about it's shading and vibrancy. The ink arrived from Germany within three days of ordering and the seller is willing to combine shipping if you order other colours in the same order. Hope this helps.
