RR Auction: Fine Autographs and Artifacts Featuring John F. Kennedy

Supremely important naturalist (1743-1820), best remembered for his expedition to Newfoundland and Labrador, his participation in James Cook's f...

English astronomer (1646–1719) who was named the first Astronomer Royal, remembered for preparing a 3,000-star catalogue, making the first recorded ob

ALS signed “Ch. Darwin,” one page both sides, 5 x 8, personal letterhead, June 1, 1862. Two weeks after the publication of Fertilisation of Orchids (h

Remarkable nautical logbook belonging to Francis Crick, consisting of approximately 175 handwritten pages of daily entries, mathematical calculations,

TLS in German, signed “A. Einstein,” one page, 8.5 x 11, blindstamped personal Princeton letterhead, January 6, 1941. Letter to psychoanalyst Theodor

ALS, one page, 5.25 x 6.75, Hotel Ritz, Paseo del Prado, Madrid letterhead, June 12, 1948. Brief letter to Pedro Radie, in full: "I am very gra...

Norwegian physical chemist (1897–1981) who shared the Nobel Prize in Chemistry in 1969 for 'contributions to the development of the concept of c...

Very desirable FDC with a cachet honoring the dedication of the Palomar Mountain Observatory, postmarked at Palomar Mountain on August 30, 1948, signe

Large archive of 31 letters by Marconi, including eight ALSs totaling 41 pages and 23 TLSs totaling 36 pages, dated between 1902 and 1909. Nearly all

Vintage fountain pen signature, "C. G. Jung, 7 Nov. 1959,” on an off-white 3.75 x 2.25 slip, affixed to a larger sheet below a portrait of the ...