50ml ink bottle of J Herbin Amethyste de l'Oural (1798 Anniversary) Purple Shimmer fountain pen ink. Made in France.
Each year, J. Herbin (or Jacques Herbin) introduces a new "Anniversary" ink that has a saturated hue with shimmer. 20187s Amethyste de l'Oural, while being a mouthful to say, it's a gorgeous deep, purple ink. Silver shimmer glitters as you lay down a wet line of ink using broader nibs.
Usage guidance (from the Herbin packaging): This ink is for pens. Never mix this ink with another. Before filling ink pot or fountain pen, rinse thoroughly. Shake the bottle well before filling the writing instrument for best results. If your pen is inactive for a period of time, we recommend to empty and clean it.