Art Nouveau Daum lamps are beautiful, especially the scenic ones such as “The Winter Landscape” lamp below. The Daum family worked at the beginning of the Art Nouveau era and created one of France’s most prominent glassworks. Established at the end of the 19th century, Daum’s renown was originally linked to the École de Nancy and the art of pâte-de-cristal, a major contributing factor in terms of its worldwide reputation. Reference: Wikipedia
Below are some examples and price guides of some Art Nouveau Daum lamps including a cameo glass and wrought iron elephant lamp and a pate de verre lamp.