Brunette Girl Doing Gymnastic Exercises In The Church With Stained Glass Windows

Other artists sought to transform an ancient art form into a contemporary one, sometimes using only traditional techniques but often exploring the medium of glass in different ways and in combination with different materials. The use of slab glass set in concrete was another 20th-century innovation. Gemmail, a technique developed by the French artist Jean Crotti in 1936 and perfected in the 1950s, is a type of stained glass where adjacent pieces of glass are overlapped, without using lead came to join the pieces, allowing for a greater diversity and subtlety of colour. Many famous works by late 19th- and early 20th-century painters, notably Picasso, have been reproduced in gemmail. A major exponent of this technique is the German artist Walter Womacka.
Among the early well-known 20th-century artists who experimented with stained glass as an Abstract art form were Theo van Doesburg and Piet Mondrian. In the 1960s and 70s the Expressionist painter Marc Chagall produced designs for many stained glass windows that are intensely coloured and crammed with symbolic details. Important 20th-century stained glass artists include Douglas Strachan, Ervin Bossanyi, Louis Davis, Wilhelmina Geddes, Karl Parsons, Patrick Reyntiens, Ludwig Schaffrath, Johannes Shreiter, Judith Schaechter, Paul Woodroffe, Jean René Bazaine at Saint Séverin and the Loire Studio of Gabriel Loire at Chartres. The Luxus Keibel studio in Mexico specialises in domestic stained glass in both contemporary and 19th century styles. The west windows of England's Manchester Cathedral, by Tony Hollaway, are some of the most notable examples of symbolic work.
In the US, there is a 100-year-old trade organization, The Stained Glass Association of America, whose purpose is to function as a publicly recognized organization to assure survival of the craft by offering guidelines, instruction and training to craftspersons. The SGAA also sees its role as defending and protecting its craft against regulations that might restrict its freedom as an architectural art form. The current president is B. Gunar Gruenke of the Conrad Schmitt Studios. Today there are academic establishments that teach the traditional skills. One of these is Florida State University's Master Craftsman Program who recently completed a 30 ft high stained-glass windows installed in Bobby Bowden Field at Doak Campbell Stadium.