Art Deco glass – The industrialisation, which started in the middle of the nineteenth century, took great flight during the Art Deco Period (1920’s 1930’s) the combination of manual labour was combined with the help of machine production, with illuminating examples in pressed glass by ‘chef d’oeuvre’ René Lalique and his time companions Marius Ernest Sabino, the editor Edmond Etling, Pierre d’Avesn and André Hunebelle. They all frequently used opalescent glass, which imitated moon stones. A special mention is the work of Charles Schneider, who really was ahead of his time, his glass art shows the modernity of this new era in tantalizing colour schemes and exuberant forms. Glass could also be carved, as shown in the work by Aristide Colotte. Beside the French the Scandinavians also produced a wide and expressive range of art glass. In the leading position, withhout doubt, the Firm ‘Orrefors’ in Sweden which employed gifted designers, such as Vicke Lindstrand, Simon Gate and Edward Hald, all masters in design and glass engraving.