Henri COUPIN - General album of cryptogams. Fungi (mushrooms). 3 unbound volumes: T1, T2, T3. ed. E. Orlhac in Paris - General album of cryptogams. Fungi (mushrooms). 5 volumes bound in 1 volume. 473 pl. n. ed. E. Orlhac in Paris. - The best and the worst of the cap mushrooms. Colorizable album (with colored pencils or pastels) consisting of pastels) consisting of 103 plates (in black) representing all the cap mushrooms (Hymenomycetes) of France and neighboring countries with the indication of their colors and their edibility or their harmfulness. Pl. n° 206 to 308. Ed. E. Orlhac 1911-1922 The 2 volumes.

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.