Here’s one of my favorite almost-pure blue inks. I say almost pure because I consider Noodler’s Blue the “bluest” blue of all the inks I’ve tried. They’re very similar, but I do prefer Midway Blue’s depth over the standard Blue’s.
This ink is part of the V-Mail Series modeled after several unused bottles of ink from the WWI-WWII era. I’ve found performance issues (feathering, bleedout, and bleedthorugh, to be precise) with every V-Mail color I’ve tried except for this one and North African Violet, another one of my favorites.