Jean-Émile Laboureur (1877-1943) Cocktails. 1931. Burin. 190 x 202. Laboureur 438. Very fine proof on white vellum, of the 1st state (of 3), before numerous cuts, notably the figures in the background, signed and numbered in pencil, then annotated "1er Etat" in the lower left corner. Full margins. Joint: same subject. Preparatory drawing. Graphite on heavy white wove paper [248 x 264], signed in pencil and monogrammed lower left in the subject. Ens. 2 p.