Henry CROS (1840-1907) was a painter, sculptor and master French glassmaker. Narbonne, he used to debut painted wax and clay that brought or delivered or developed in 1882, the technique of dough in low relief glass containing the writings of Pliny the Elder (23-79 AD ).
He developed the technique of modern glass paste. He made many medallions in this material. The first work was a portrait of his niece. His work, part of Art Nouveau, inspired particularly from antiquity themes. He has worked at the Manufacture Nationale de Sèvres. Henry CROS jealously kept silent about his work. The composition of the molten glass, processes have never been revealed. Only his son was the only knowledgeable and partially preserved the secret.