Robert Oster Blue Black

Robert Oster Blue Black is a dark blue black fountain pen ink with a purple undertone, low shading, and low copper sheen. It dries in 20 seconds in a medium nib on Rhodia and has a wet flow. Robert Oster ink is made in Australia. Brand Robert Oster Ink Name Blue Black Country of Origin Australia Color Blue Black Dry Time 20 Seconds (Pilot Vanishing Point Medium Nib on Rhodia Paper) Flow Wet Shading Low Sheen Low copper sheen Shimmer No Limited Edition No Water Resistance No Iron Gall  No Pigment No Read a full review of this ink on multiple types of paper from Mountain of Ink.