French painter and lithographer (1867–1947). He trained at the Académie Julien, then joined the group called Les Nabis, which included Denis and Vuillard, with whom he formed the intimist group. ALS in French, signed “Bonnard,” one page, 4.25 x 3.25, October 24, 1936. Brief letter to French art critic and Bonnard biographer Louis Vauxcelles, permitting him to to reproduce in color his painting called “femme se refletant dans un miroir.” In fine condition. RR Auction COA.