BAL DE LA GRANDE OURSE, organised by the Union des Artistes Russes. Salle Bullier, Paris. Paris, UAR, 1925. Stapled 32-page in-8 leaflet, preserved with three posters and four leaflets in a havana morocco spine folder and slipcase. Programme for La Grande Ourse, a traditional ball organised by the Union of Russian Artists on 8 May 1925 in Paris. Illustrations by Wolovik, Fotinsky, Rabinovitch, Picasso, Goncharova, Larionov, Léger, Sterenberg, Sterling, Rodtchenko, Marie Vassilieff, Laurens, Melnikoff and Frenkel. Copy on laid paper signed by Michel Larionov at the foot of the cover. Very slight discharge on the Picasso illustration. Seven documents relating to the event are enclosed: a folio-sized indoor poster (49.5 x 32.5 cm) printed on both sides on laid paper, illustrated with a drawing by Herbin and Henri Laurens, folded in two; two variants of the same poster printed on fine blue paper, folded in two or four; four prints of the same advertising leaflet on salmon, pink, blue and yellow paper (31 x 14 cm).