RR Auction: Fine Autographs and Artifacts

British mathematician (1847–1927) who served as professor of mathematics at the Royal Military Academy at Woolwich, London, and was one of the world...

German chemist (1879–1968) who won the 1944 Nobel Prize for the discovery of nuclear fission. Group of four untranslated letters in German by Hahn, co

British mathematician, astronomer, and inventor (1792-1871) known for his discoveries related to the moons of Saturn and Uranus and for his pioneering

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

American paleontologist, educator, and conservationist (1869–1945) best known for his taxonomy of vertebrate fossils at the La Brea Tar Pits in Los An

English biologist and paleontologist (1804-1892) best known for interpreting fossils and coining the term 'dinosaur.' ALS, one page both sid...

American archaeologist (1867–1935) who made important discoveries among the mound builders in southern Ohio. ALS signed “M. H. Saville,” two pages on

One of the foremost solar spectroscopist astronomers in the United States (1834–1908) who authored a widely used series of astronomy textbooks. ALS si

Highly influential British economist (1883–1946) who was the chief British representative at the 1944 Bretton Woods conference that established the In

Scottish economist (1671–1729) known as a monetary reformer and as the originator of the 'Mississippi scheme' for the development of French ...

Controversial and prolific Austrian writer and philosopher (1861–1925) who founded such disciplines as anthroposophy, biodynamic agriculture, eurythmy

Pope Benedict XVI's personally-worn white zucchetto skullcap (worn as pope emeritus), measuring 7? in diameter, featuring a light suede white li...

Born Giovanni Battista Pamphilj (or Pamphili), he served as pope from 1644 to 1655. He was viewed as one of the most politically shrewd pontiffs of th

Desirable woodblock-print diploma from the 1975 Polish Festival of Sacrosong, 9 x 13, signed in the center in bold ink, "Karol card. Wojtyla,&q...

TLS in Polish, signed “Karol card Wojtyla,” one page, 5.75 x 4, illustrated "Totus Tuus" stationery card, November 6, 1968. In full (rough...

Superb 4.75 x 6.5 cabinet portrait of Pope Leo XIII in a splendid half-length pose, signed in the lower border in black ink, "Leo pp. XIII.&quo...

TLS in Polish, signed “Card. Karol Wojtyla,” one page, 5.75 x 4, illustrated "Totus Tuus" stationery card, February 26, 1972. Letter to a ...

TLS in Polish and Latin, signed “Karol Wojtyla,” one page, 5.75 x 4, illustrated "Radosnych Swiat" stationery card, December 1963. In full...

Turkish army officer, statesman, and writer (1881–1938) credited as the founder of the Republic of Turkey. Exceptional matte-finish 5.75 x 8.5 full-l

TLS in Hebrew, one page, 5.75 x 7.5, April 27, 1956. Important letter in which Ben-Gurion, as prime minister of Israel, states that Israel cannot rely