[Ephemera] John Gibson, Gallery invites 1970s -80s Collection of 21 exhibition postcards from 1974-1986 published by John Gibson Gallery, New York. All cards 10.5 x 15 cm, with the exception of 3 larger copies, 23 x 10.2 cm. Printed both sides, mostly with a colour photographic image on recto. All unmailed copies, in very good state. Exhibitions by Roger Cutforth (3 cards, 1974 - 1979, one large format), James Collins (1975), David Askevold (1976), Broodthaers (1976), Jean Le Gac (3 cards, 1976-1979), Mac Adams (large format 1976), Dennis Oppenheim (2 cards, 1977 and 1980), Joseph Beuys (2 cards 1981 and 1985), Peter Hutchinson (1985), John M Armleder (1986), Robert Cumming, Janet Rifkin (2 cards, one large format), John Fernie, and William Childress. (total 21)

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.