RTL: 1 set of greeting cards and correspondence, handwritten, signed by great personalities of the song, radio and television and addressed to Roger Kreicher during the 70s and 80s: Alain Afflelou, Marcel Amont, Charles Aznavour, Daniel Ceccaldi, Jean-Jacques Debout, Michel Drucker, Yves Duteil, Chantal Goya, Enrico Macias, Mireille Mathieu, Francis Perrin, Jean Prouvost, Johnny Stark, Leon Zitrone. There are attached 2 greeting cards in the colors of RTL, addressed to Roger Kreicher by André Torrent and Max Meynier.

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.