A very rare Art Nouveau deep acid etched glass vase attributed to Nancy Daum. A beautiful pale orange color with black flecks acid etched right through to the clear below with a fabulous design of stylized leaves and flowers. Circa: 1920s to 1930s. Daum is a crystal studio based in Nancy, France, founded in 1878 by Jean Daum, 1825 to 1885. His sons, Auguste Daum and Antonin Daum, oversaw its growth during the burgeoning Art Nouveau period. Daum is one of the only crystal manufacturers toe employ the pate de verre glass paste process for art glass and crystal sculptures, a technique in which crushed glass is packed into a refractory mould and then fused in a kiln. Antique and Vintage Art Nouveau European Glass Vases, Table Wares, Home Decor, interior Design, and Collectibles.