Lost Recipe for Medieval Blue Ink Found

Galling ink! How The National Archives preserves millions of documents written in iron gall ink - The National Archives blog

A Practical Guide to the Production of Black Pigments & the Preparation of Black Watercolours, 1350-1700 - Burgundian Black

The Missing Ink by Philip Hensher – review, Books

Western Reserve Spinners & Weavers Guild

Silver Willow Grove

Lost Language, Code or Hoax? Why the Voynich Manuscript Still Stumps Experts

Kevin Peckham Art

Experts Solve 1000-Year-Old Mystery of Rare Medieval Blue Ink

iris ink – THREADBORNE

Medieval manuscripts blog: Science

Western Reserve Spinners & Weavers Guild

Researchers Follow a 15th-Century Recipe to Recreate Medieval Blue Ink – Brewminate: A Bold Blend of News and Ideas

Blue Pigment In A Fossilized Tooth Traced To Medieval Woman's Work : Shots - Health News : NPR