Stained Glass

Stained Glass Windows of Louis Comfort Tiffany - Featuring photographs of windows by Tiffany.
Tiffany, Louis Comfort: The Rivalry Between Him and John La Farge - Long illustrated article on the competition between La Farge and Tiffany, both of whom claimed to have invented American opalescent stained glass, both of whom trademarked it, their legal battle and its outcome.
Tiffany, Louis Comfort: Works Viewable on the Internet - Useful set of links to the artist's works in art museum sites and image archives worldwide.
Tiffany Studios: Notes on Marks, Authentication and Reproduction - Essential Tiffany facts, and information of particular interest to those collecting the studio's work. Bibliography; no illustrations.
Tiffany Windows in the Collection of the Metropolitan Museum of Art - Offers photographs of some of Tiffany's most famous stained glass windows from the Met's collection.