There is a beautiful artform that has been used in interiors since ancient times and you can still find practiced today. Verre églomisé, is a technique/process in which the back side of glass is gilded with gold or metal leaf and then engraved with ornate designs.
The most recent incarnation of this laborious and elegant craft comes at the hands and mind of modern dancer turned decorative painter, Miriam Ellner. Ellner, with an atelier (or workshop) in the Chelsea neighborhood of Manhattan, has been featured in the January 2013 edition of 1stdibs' INTROspective Magazine and the article and pictures tell a great story. An interesting perspective from Ellner: "Verre églomisé is like a moving painting...because it changes depending on the angle at which you look at it".