[FLORIDA] DUVAL, WILLIAM POPE. Long autograph letter signed to Secretary of the Navy Abel P. Upshur.

[FLORIDA] DUVAL, WILLIAM POPE. Long autograph letter signed to Secretary of the Navy Abel P. Upshur. St. Augustine: 5 September 1842. A long autograph letter signed "W.P. Duval" on the recto and verso

Thomas Jefferson to George Washington One of the Few Known to Exist, Ex-Charles Hamilton Third-person Autograph Letter Signed, “The Secretary of State”, within the text, 1 p., 7.75”

Autographs 1850-Dated Autograph Letter Signed "William H. Seward" The Compromise of 1850 Political Issues Prove Divisive WILLIAM H. SEWARD (1801-1872). U.S. Secretary of State under Lincoln, Negotiate

* TCHAIKOVSKY, Peter Ilich (1840-1893). Autograph letter signed ("P. Tchaikovsky"), to Eduard Frantsevich Nápravník. N.p., 10 September 1883. 3 pages, 8vo, creased to folds; matted and framed with o

William Smallwood autograph letter signed ("W Smallwood"). One page, 8.25" x 13.25", "James Mechlans [Machlin's] Tavern", [Pennsylva

[NATIVE AMERICANS]. CLARK, William (1770-1838). Autograph letter signed ("Wm Clark") as US Agent of Indian Affairs, to William Linnard, Esq. St. Louis, MO, 23 January 1812.   1 page, 4to (creased

COLLINS, William Wilkie (1824–1889). Autograph letter signed (“Wilkie Collins”) to his cousin Jane Ward, 12 January 1881. 3 pages, 8vo (180 x 114 mm), personal letterhead on a bifoli

PICABIA AS ARTIST, POET AND PHILOSOPHER. PICABIA, FRANCIS. 1879-1953. Archive of 17 Autograph Letters Signed ('Francis' and 'Francis P') in French to Jennie [Thiersch] including an original ink drawin

William Alexander, Lord Stirling autograph letter signed ("Stirling"). One page, 7.5" x 11.5", Elizabeth Town, [New Jersey]; Oct

Thomas Jefferson Autograph Letter Signed in the Text While Secretary of State. One page of a bifolium, 7.625" x 4.5" (folded – sight), no place; M

Rare ALS signed “Edgar A. Poe,” one page, 7.75 x 9.75, August 24, 1846. Addressed from New York, a handwritten letter to writer Frederick William Thomas, who, from 1841 until 1850, worked

MARION, FRANCIS. 1732-1795. Early Autograph Letter Signed ('Fran. Marion') from the Swamp Fox to General Benjamin Lincoln, from the field, 1 p, 4to (318 x 254 mm), ink on paper, 'Camp at Sheldon' [Sou

French physicist (1859-1906) best known for his pioneering investigation of radioactivity, who shared the 1903 Nobel Prize in Physics with his wife, Marie Curie. ALS in French, signed “P. Curie,

FREUD, SIGMUND. 1856-1939. Autograph Letter Signed ("Freud") to Dr. Max Levy-Suhl commenting on the growing interest in psychoanalyses 1 p. (223 x 142 mm) in German, on "Wien, IX, Bergstrasse 10" lett

(GIDEON WELLES.) Extensive archive of personal and family papers of Lincoln's Secretary of the Navy. More than 1,000 items in 6 boxes (2.5 linear feet), including approximately 153 Autograph Letters S

A REPUBLIC OF TEXAS MANUSCRIPT, SAM HOUSTON, SIGNED, APPOINTMENT OF PHYSICIAN WILLIAM M. SHEPHERD AS SECRETARY OF THE NAVY OF THE REPUBLIC OF TEXAS, HOUSTON, AUGUST 13, 1837, hand-inscribed ink on Hud

ALS signed “N. Tesla,” four pages on two adjoining sheets, 5.25 x 6.75, personal monogram letterhead, June 14, 1899. Handwritten letter to Rear Admiral Francis J. Higginson by Nikola Tesla

CROCKETT, DAVID. 1786-1836. Autograph Letter Signed ('David Crockett') to James Davison on the heels of his failed 1831 Senate bid, including much commentary on his political philosophy and his disput

Johann Kalb autograph letter signed ("Baron de Kalb"). Two pages on one leaf, 6.5" x 8.5", Anderson's Ferry, [Pennsylvania]; September

ALS as president, signed “Go: Washington,” one page, 6.75 x 8.5, April 8, 1791. Handwritten letter to his nephew George Augustine Washington, penned from Dumfries, Virginia, during his pre

Thaddeus Kościuszko autograph letter signed ("Thad: Kosciusko Colo."). One page, 7.75" x 6.25", Fishkill [New York]; Dec

Richard Montgomery autograph letter signed ("R Montgomery"). One page of a bifolium, 7.25" x 9", New York; "Saturday" [circa June 1775]. Add

German mathematician (1845-1918) who created set theory, which has become a fundamental theory in mathematics. Cantor established the importance of one-to-one correspondence between the members of two

Benedict Arnold autograph letter signed ("B. Arnold"). One page of a bifolium, 6.5" x 8.25", Philadelphia; June 8, 1777. Addressed b