Naval officer and oceanographer (1806–1873) who published the first textbook of modern oceanography. ALS signed “M. F. Maury,” one page, 5 x 8, Richmond, May 24, 1861. Letter to Confederate admiral Franklin Buchanan. In part: “Lincoln it appears has taken possession of Alexandria—5000 at 5 am…I suppose we shall ‘up & at ‘em’ soon.” Intersecting folds, one vertical fold passing through a single letter of the signature, light scattered creases, and a few spots of soiling, otherwise fine condition. RRAuction COA.