Art Nouveau Toilet Door Signs. Art Nouveau ( New Art) was popular between 1890 and 1910 and was inspired by natural forms and the curved lines of plants and flowers. Famous Art Nouveau designers include Tiffany, Gallé, Archibald Knox,William Morris, Lalique, Gaudi and Rennie Mackintosh as well as artists such as Toulouse-Lautrec, Klimt and Beardsley.
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