My thanks to Ana of the Well Appointed Desk for the ink sample exchange.
Montblanc Antoine de Saint Exupery, such a mouthful. It is a dark wine-purple colour. It shades well going from a dark almost black-red/purple to a faded dusty pink/purple colour. Personally this isn’t a very unique ink in my opinion. I’m pretty sure there are other similar shades from other more affordable brands.