BURGUES DE MISSIESSY Édouard-Jacques Comte de. General signals by day, night and fog, under sail and at anchor, for the use of the naval armies of the French Republic. Paris, Imprimerie de la République, 1801; in-8 old half vellum. First edition. The content of this work was to be kept secret and sent only to senior officers, so that foreign navies would not know about it. There are several printed and folded tables, one of which is printed on vellum.

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.