Russian writer, explorer, and adventurer (1870–1938) best known for his story The Duel. Important ALS in Russian, signed “A. Kuprin,” one page, 8.25 x 10.5, June 5, 1927. Untranslated letter to Russian emigre writer Vladimir Bienstock. In fine condition, with central vertical and horizontal folds, filing holes to the left border, and a couple trivial stains to right edge. RR Auction COA.