RR Auction: Fine Autographs and Artifacts

Handwritten letter in French sent to Lagrange by a mathematician, “Guillon,” three pages on two adjoining sheets, 6.5 x 8.25, 1798. The letter propose

English scientist and astronomer (1836–1920) credited with Pierre Janssen as the co-discoverer of helium. Uncommon ALS, one page, 4.5 x 5.75, Solar Ph

ALS signed “Ch. Darwin,” one page, 5 x 8, Down letterhead, April 25, no year but docketed 1871. Letter to “Johnson,” in full: “I am very sorry to hear

Bold ink signature, “Charles Darwin, Down, Beckenham, Kent, March 30, 1872,” on an off-white 5 x 3.5 slip. Affixed to a larger album page and in fine

Handwritten scientific notes in French, unsigned, one page, both sides, 7.25 x 9.5, dated June 19–28, [1857], headed at the top in pencil in another h

British surgeon (1827–1912) who innovated the practice of sterile surgery, one of the most important medical advances of the day. ALS, one page both s

ALS, one page both sides, 4 x 6, black-bordered 12 Park Crescent letterhead, October 11, 1895. Letter to Dr. William Bulloch, in full: “I am much obli

French mathematician, physicist, and philosopher of science (1854–1912) who famously formulated the ‘Poincare Conjecture,’ which went unsolved for nea

Canadian-born physician and researcher (1849–1919) who was a founding professor of Johns Hopkins Hospital. ANS signed “Wm. Osler,” one page, 4.5 x 3.5

Hungarian-born nuclear physicist (1908–2003) who worked with Fermi on the Manhattan Project and later assumed a leading role in the development of the