Blackstone Barrister Purple waterproof fountain pen ink in a 30 mL plastic bottle.
We love Blackstone's Barrister inks - they are surprisingly well-behaved, with fast dry times and unbelievable shading.
Blackstone Barrister Purple is a well behaved purple waterproof, permanent fountain pen ink made in Australia by Blackstone Ink. Barrister Purple is 100% waterproof and is unaffected by complete immersion in water. It is fade resistant and highly resistive to bleach, alcohol and mild acids.