Bendheim’s Restoration Glass® is the world’s finest mouth-blown window glass, found in landmark historic restorations, including The White House, Mount Vernon, and Monticello. This authentic mouth-blown glass matches antique window glass of the 17th through early 20th centuries. Its slight wavy appearance, occasional small bubbles and subtle surface imperfections make it historically accurate, perfect for replacing missing or broken antique glass, as well as detailing reproduction homes and furniture.