American author (1832–1899) best known for his popular Victorian “rags to riches” dime novels. Ink signature, “Yours sincerely, Horatio Alger, Jr., Jan. 21, 1887,” on an off-white 5 x 3 slip. In fine condition, with a bit of light toning, and slight show-through from mounting remnants on reverse corners. RRAuction COA.
