航空先驱 - erinnophily / cartophily. CIRCUIT DE L' EST D' AVIATION - 1910 年 8 月会议，第一阶段巴黎-特鲁瓦。 第 14 号明信片，两位飞行员的特写："马约尔中尉和兰伯特伯爵，莱特飞行员"。- 抵达特鲁瓦（8 月 7-8-9 日）的插图、 橙色大锯齿小图案，石版画 Paton，城市轮廓（Silombra V 10）。

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.