Robert Oster Thunderstorm

Robert Oster Thunderstorm is a dark blue black fountain pen ink with medium shading and low brown sheen. It dries in 30 seconds in a medium nib on Rhodia and has a wet flow. Robert Oster ink is made in Australia. Brand Robert Oster Ink Name Thunderstorm Country of Origin Australia Color Blue Black Dry Time 30 Seconds (Pilot Vanishing Point Medium Nib on Rhodia Paper) Flow Wet Shading Medium Sheen Low brown 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.