1881 - 1946 Service hydrographique de la Marine. Set of 4 printed charts of the China Sea coasts: - Annam coast from Ile buffle to Cap Batangan. - Gulf of Tonkin: Annam coast from Hon-Matt to Hon-Né. - Gulf of Tonkin: Annam coast from Hon-Tseu to Hon-Natt. - Gulf of Tonkin: Tiger Island to Cape Chon May near Hué. Dimensions: 74x104 cm. Service géographique de l'Indochine. Set of 7 color printed maps, scale 1: 100.OOOe: - Gia-Ray - Mu-Gia with photographic map - Hon-Quan (part) with photographic map - Cam-Linh - Nah-Trang and part of a map at 1:25,000 scale - Cape Varella - Hon-Khoï (Damaged edges).

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.