A green pate-de-verre necklace by Helen Aitken-Kuhnen, the free form green pate-de-verre surrounded by sterling silver, suspended from silver cord, circa 1994. Exhibitions: Helen Aitken-Kuhnen has been widely exhibited in Europe, Australia and New Zealand, since 1979. Other Notes: pate-de-verre, is the process of kiln firing of granulated glass. It was formed by ancient cultures such as the Egyptians and Romans. Helen Aitken-Kuhnen's use of pate-de-verre heralds a different phase of her work in the 1990's.