Akkerman 10 Akkerman Ijzer-Galnoten Blauw-Zwart iron gall fountain pen ink in a 60 mL glass bottle.
Akkerman 10 is an iron gall fountain pen ink, which will not only shift colors as the ink bonds to the paper, but will also maintain a great degree of water resistance with the undertone of gall. Iron gall inks sold by Lemur Ink are absolutely vetted and safe for use in all modern fountain pens, provided they are used regularly.
Form follows function in the beautiful Akkerman ink bottles. Their vintage-styled glass bottles feature a marble stopper inside the neck of the bottle which, when tipped, fills the neck for easy filling. This allows east filling of your fountain pen without having to dunk the entire pen in the large bottle.