Favrile glass

Favrile glass is a term originally used as a trade name for art glass produced at Tiffany Furnaces, a glassmaking factory owned by Louis Comfort Tiffany. In modern times, the term is often used to describe the type of iridescent glass Tiffany produced there. While first produced in the United States by Tiffany, this glass, a kind of lustred glass, was actually invented by Arthur J. Nash, inspired by the iridescence of corroded glassware unearthed from Roman ruins. Tiffany lustred glass has a "soft, satiny sheen" due to Tiffany's use of opaque glass, in contrast to the "mirrorlike finish" achieved by some European varieties of lustred glass, which used transparent glass.

Tiffany used this glass in the stained-glass windows designed and made by his studio. His largest and most significant work using Favrile glass is Dream Garden (1916), commissioned by the Curtis Publishing Company for their headquarters in Philadelphia and designed by Maxfield Parrish. It is now owned by the Pennsylvania Academy of the Fine Arts.

Favrile glass was highly reputed and very expensive in its time, and sparked many imitations.