RR Auction: Fine Autograph and Artifact Auction

ALS in German, signed "Einstein," one page both sides, 8.25 x 10.75, September 19, 1932. Letter to his longtime friend Wander Johannes de ...

French mathematician who specialized in celestial mechanics (1811–1877) best known for his part in the discovery of Neptune. ALS in French, signed “U.

American chemist and inventor (1853–1927) best known for several innovations related to explosives, including smokeless gunpowder. Uncommon typed manu

ALS signed "Saml. F. B. Morse," one page both sides, 5.25 x 8, August 4, 1860. Letter to Moses Sperry Beach, former editor and proprietor ...

Rare signed book: Examination of the Telegraphic Apparatus and the Process in Telegraphy. Washington, DC: Government Printing Office, 1869. Softcover,

Signed book: Etudes sur le Vin. First edition. Paris: Victor Mason et Fils, 1866. Beautifully rebound in brown leather and marbled paper, 6.5 x 9.5, 2

ANS in French, signed “L. Pasteur,” one page, 3.75 x 6, October 31, 1893. In full (translated): "From the Institute of France with all its comp...

Russian physiologist (1849–1936) best known for his investigation of conditioned reflex through the use of experiments involving salivating dogs; he w

Astonishing thrice-signed ALS in French, signed "Albert S." and "Albert Schweitzer," three onionskin pages, 8.5 x 11, October 22...

Immensely influential British mathematician, cryptanalyst, and computer scientist (1912–1954) considered the father of theoretical computer science an