Stained Glass Design and Restoration
The term stained glass can refer to coloured glass as a material or to works created from it. Throughout its thousand-year history, the term has been applied almost exclusively to the windows of churches and other significant religious buildings.
The making of stained-glass windows has hardly changed since the 12th century. A stained-glass window consists of pieces of coloured glass held together in a latticed web of lead.
The glass has previously had details of faces, hands and drapery painted and fired on to it in black or brown paint. About the year 1300, yellow stain was discovered, This had the ability to turn white glass yellow or blue glass green, and was extremely useful in the highlighting of hair, halos and crowns.