Art Nouveau ceiling lamp with evening landscape Three-pass, raised, dome-shaped shade above. Clear glass with four thin overlays in golden ruby pink, light green, yellow and cobalt blue. Etched decoration all around in several steps. Openwork metal mount with struts and leaves in relief and a wreath of pearls made of white-blue opal glass. Old electrified. Total height 35 cm. A Bohemian Art Nouveau cameo glass ceiling lamp by Josef Riedel with acid-etched landscape decor. Metal mounting with opalescent glass pearls. Bohemia. Polaun. Josef Riedel. Around 1900-1910.

Composed of several subsidiaries, the Drouot Group is a major player in the art market. Hôtel Drouot, located in the heart of Paris, has been the world's largest public auction center since 1852. 15 salerooms are available to more than 70 auction houses. The emulation generated by an annual offer of 230,000 artworks from 21 major specialities - from Antiquity to street art - attracts some 3,000 visitors every day. The Group's digital platform, Drouot.com, offers digital sales - Live auctions (live broadcasting and participation in auctions), Online-only auctions (dematerialised auctions) and Buy Now sales (sales of lots at fixed prices). Nearly 2 million items are offered annually by 600 auction houses. Auction news is reported every week in La Gazette Drouot, the leading weekly magazine for the art market and culture published by Auctionspress.