Moon globe by the selenographer Alfred Schlegel. Berlin/Stuttgart, 1971, marked "Columbus Mondglobus, Autor Selenograph Alfred Schlegel, Columbus Verlag Paul Oestergaard, Berlin-Beutelsbach bei Stuttgart", the globe covered with 12 paper segments in offset print, half meridian with 2 x 90° graduation, turned wooden base with chrome-plated decorative cap. Diameter: approx. 14 cm. Height: approx. 21 cm. Cf. description and illustration: Lehmann, R., Berliner Globenhersteller 1790-1970, 2010, p. 95. An Alfred Schlegel lunar globe. Berlin / Stuttgart 1971, "Columbus Mondglobus, Autor Selenograph Alfred Schlegel, Columbus Verlag Paul Oestergaard, Berlin - Beutelsbach bei Stuttgart", twelve offset printed globe gores mounted on cardboard sphere, half meridian circle, turned wooden base. Diameter c. 14 cm, height c. 21 cm.

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.