25-04-2026, 03:56 PM
(25-04-2026, 03:14 AM)Jorge_Stolfi wrote: You are not allowed to view links. Register or Login to view.Therefore, when reading any paper (like that one) about properties of IGI on medieval manuscripts, one must read carefully to see whether they have actually determined that the ink is IGI, or just assumed that it was.
Is there a test that would beyond reasonable doubt confirm for you that some writing is in iron gall ink?

