ALS : Autograph Letter SignedPioneering and influential American-born artist (1843-1903), best known for his distinctively evocative portraits and landscapes, and the "Arrangement in Gray and Black," aka "Whistler's Mother." Uncommon Autograph Letter Signed, in pencil, signed "J Mc: N. Whistler," one page, 6 x 4, no date. Short letter to a friend. In part: "I do hope you are quite well again-- and perhaps you will look in tomorrow after dusk." A central vertical fold, some scattered light soiling and spotting, and a small pencil notation to top left corner, otherwise in fine condition.