RR Auction: Fine Autographs and Artifacts featuring Science and Technology

ALS in Dutch, signed “Henk. Casimir,” one page both sides, 8.25 x 11.75, June 22, 1933. Letter to Dutch-American physicist Samuel A. Goudsmit. In part

Lengthy ALS in Dutch, signed “Henk. Casimir,” four pages both sides, 8.25 x 11, September 27, 1930. Letter to Dutch-American physicist Samuel A. Gouds

ALS signed “J. Chadwick,” one page both sides, 8 x 9.5, February 2, 1958. Letter to Nobel Prize–winning physicist Isidor Isaac Rabi, marked "Co...

ALS signed “J. Chadwick,” one page, 5.5 x 7, Wynne's Parc, Denbigh, N. Wales letterhead, March 23, 1966. In full: "I am sorry that I no lon...

LS in French, signed “J. Chaptal,” one page, 7.75 x 12, Senat-Conservateur letterhead, December 20, 1805. Untranslated letter as treasurer of the sena

Untranslated ALS in French, signed “Chevreul,” one page, 5.25 x 8.25, Museum d'Histoire Naturelle letterhead, March 20, 1878. In fine condition.

TLS, one page, 4 x 6.25, personal letterhead, July 22, 1890. Letter to M. L. Olivier in Paris, in part: "I am not able to tell you the exact da...

Uncommon TLS in French, signed “M. Curie,” one page, 8.5 x 10.75, Faculte des Sciences de Paris, Institut du Radium letterhead, May 15, 1922. Letter t

Extremely rare Union Bank of London check, 7 x 3.25, filled out and signed by Darwin, "Ch. Darwin," payable to Mr. Nicholls for £34.1...

ALS signed “C. Darwin,” two pages, 4.75 x 7.75, February 16, [1861]. Letter requesting a book on poultry by George Ferguson, in part: "Will you...

Choice unsigned 2.5 x 4 carte-de-visite portrait of Charles Darwin by the London Stereoscopic & Photographic Company, showing the revered natura...

ALS signed “H. Davy,” one page both sides, 7.5 x 9, December 16, 1824. Letter to Reverend Edward Forster, in part: "I do not myself collect MSS...

TLS in French, three pages on two adjoining sheets, 8.25 x 10.5, Institut de France letterhead, January 4, 1965. Untranslated letter to Madame Gustave

ALS in French, one page both sides, 4.75 x 3.5, Institut de France letterhead, November 23, 1959. Untranslated letter mentioning the 100th anniversary

Superb matte-finish 6 x 7.75 photo of Dewar posing beside an impressive flask, affixed to its original 10.5 x 13.75 mount, boldly signed on the image

Untranslated ALS in French, signed “Duhamel du Monceau,” one page, 4.25 x 6.5, no date. In very good condition, with some staining and creasing.

Extraordinary LS signed “Thomas A. Edison,” one page, 7.75 x 12.25, no date but circa 1880–1881. Superb letter to "His Excellency The President...

Exceedingly bold ink 'umbrella' signature, "Thos. A. Edison,” on an off-white 3.25 x 1.75 card. Matted and framed with a Falk cabinet p...

TLS in German, signed “A. Einstein,” one page, 8.5 x 11, blindstamped Princeton letterhead, June 26, 1946. Letter to violinist Boris Schwarz, a profes

Important handwritten manuscript in German, unsigned (but incorporating "Einstein" in the title), two pages, 8 x 10.25, no date but circa ...