RR Auction: Fine Autographs and Artifacts Featuring Art and Animation

Italian doctor (1628–1694) who gave his name to several physiological features and played an important part in the discovery of the microscope and stu

Distinguished German physicist (1845–1923) who discovered X-rays in 1895, for which he was awarded the Nobel Prize in 1901. ALS in German, signed &q...

Brilliant American physicist (1904–1967) who directed the Institute for Advanced Study in Princeton and who spearheaded the Manhattan Project, leading

French polymath (1717–1783) known for his contributions in the realms of mathematics, physics, philosophy, and music theory; he served as co-editor of

Czech-German philosopher and theorist (1854–1938) sometimes called the 'Pope of Marxism.' Rare ALS in French, signed “K. Kautsky,” one page ...

Uncommon book: Das Kapital: Kritik der politischen Oekonomie, Buchs I and II, by Karl Marx and edited by Freidrich Engels. Later printing. Hamburg: Ve

Born Albino Luciani (1912–1978), he was elected Pope on August 26, 1978, and suddenly died of a heart attack just 33 days later. TLS in Italian, signe

Attractive glossy 7 x 9.25 photo of Mother Teresa meeting German Chancellor Helmut Kohl at her private home in Oggersheim on July 13, 1986, signed in

Born Giuseppe Melchiorre Sarto in 1835, Pius X served as pope from 1903 until his death in 1914. Known for his conservative, anti-modernist philosophi

Born Eugenio Maria Giuseppe Giovanni Pacelli (1876–1958), he served as pope from 1939 until his death. Matte-finish 3.75 x 6.5 photo of Pope Pius XII,