Oak gall ink made by Ian the Green of Midrealm - 1.5 fl oz in a screw top plastic bottle. This is one of our all time favorite inks and we personally endorse it as fantastic to work with. Made with a period recipe and aged - each bottle is dated.
It begins as a light grey but darkens as it oxidizes into a deep blue black when exposed to light and air.
Perfect for paper, pergamenata and vellum.