Lot of various programs, booklets and documents related to royal events and official ceremonies, including: - Order of the Garter ceremony on April 23, 1948. - Opening of Parliament on November 6, 1956. - Dedication of the George V? Memorial Chapel on March 31, 1969. - 25 years of marriage of Queen Elizabeth II on November 20, 1972. - 60th birthday of the Queen on April 21, 1986. - 80 years of the Duke of Edinburgh on June 10, 2001. - 50 years of the Queen's reign on June 2, 2003. - Diamond wedding of The Queen and The Duke of Edinburgh on November 19, 2007. - Musical program for the Royal Household social club Christmas parties, 1953 (x2) and 1956. - Luncheon in honor of the Queen and Duke of Edinburgh by the Corporation of London, May 19, 1954. - A concert for the Queen Mother's 90th birthday on August 2, 1990.

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.