OLEFFE, Auguste A lady playing guitar. 1917 Pencil, red and blue chalk, grey wash, 29,2 x 18,3 cm, wove paper, signed and dated "Pour les orphelins français / A Oleffe 1917" (sm. tears on edges, margin sl. browned unevenly). Folded and bound with ribbon around programme booklet. Charming drawing on the cover of a programme booklet for the garden party in the park of castle Val Duchesse in Brussels on 8 September 1917, organized by the Spanish ambassador Marquess of Villalobar for the benefit of French and Belgian orphans.

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.