Samples of wet 13th-14th-century Grisaille window glass, visually sorted according to their extent of corrosion, were examined for physical changes while air drying and solvent drying. Polished cross sections of the samples were examined with a JEOL-35CF scanning electron microscope (SEM) with a LINK AN 10,000 dispersive x-ray analyzer. Elemental distribution maps showed distinct alterations in the positioning of elements according to the corroded nature of the glass.