OUR. Meeting of publications on the hydro-electric development of the Our: 1) Société électrique de l'Our, Centrale de Vianden, Brochure of July 1963 2) 2 press releases (FR and DE) issued for the inauguration in April 1964 3) L'Aménagement hydro-électrique de Vianden, Société électrique de l'Our, Imprimerie Bourg-Bourger, fold-out brochure, 1960s 4) 3) L'Aménagement hydro-électrique de pompage de Vianden, Société électrique de l'Our, in French and German, fold-out brochure from the 60s 5) SEO, Centrale de Vianden, digue de séparation état des travaux 1962, In-4 square brochure from Imprimerie Worré Luxembourg

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.