RR Auction: Fine Autographs and Artifacts

British historian and archaeologist (1817-1894) best known as the excavator of Nimrud and Nineveh, where he uncovered a large proportion of the Assyri

French mathematician who specialized in celestial mechanics (1811–1877) best known for his part in the discovery of Neptun

Astronomer-scientist (1907–2004) associated with the Franklin Institute, known for his pioneering work on the Martian cloc

German-American science writer and space advocate (1906-1969) who helped popularize rocketry and spaceflight in both Germany and the United States. Gl

Son of President Abraham Lincoln (1843–1926) who served as secretary of war in the Garfield and Arthur administrations. Ve

Two items: an ink signature of Robert Todd Lincoln on a 4.75 x 3 War Department card dated to April 20, 1882; and an ink signature of William H. Sewar

ALS, one page both sides, 4.5 x 7, black-bordered personal letterhead, February 25, 1896. Handwritten letter to English botanist and taxonomist Maxwel

American statesman (1764–1836) who helped draft the Louisiana Civil Code and served as Andrew Jackson's secretary of state

Geologist (1797–1875) referred to as the 'father of modern geology,' who was a close and influential friend of Charles Dar

Desirable 4 x 5.75 cardstock close-up photo of Nelson Mandela, signed in black felt tip, "N. Mandela, 14-4-97.” In very fin