GRANT, ULYSSES S., President. Autograph letter signed ("U.S. Grant") as President, to Senator Hannibal Hamlin, acknowledging the receipt of his note, complying to a request. Washington, D.C., 21 February 1871. One page, 8vo, on "Executive Mansion" printed stationery, integral leaf blank, some pinholes at each corner, glue remnants on lower-right corner (not affecting signature).