US / Canada Toll Free
Alexander Fleming Autograph Letter Signed: "You seriously underestimate the number of autograph pests"
Leon Foucault Autograph Letter Signed - Scarce Handwritten Letter from the Inventor of the Foucault Pendulum
Carl Friedrich Gauss Autograph Letter Signed to Astronomer Wilhelm von Struve
Eduard Heine Hand-Addressed Mailing Panel - German Mathematician
Werner Heisenberg Typed Letter Signed on a Translation of Max Born's Obituary - Connecting the Pioneers of Quantum Mechanics
John Hunter Third-Person Autograph Letter Signed - Early Promoter of Scientific Methods in Medicine
Edward Jenner Autograph Letter Signed, Regarding a "veterinary surgeon of the highest reputation"
Antoine Lavoisier Document Signed - Influential French Chemist
Pierre Louis Maupertuis Signed - Royal Prussian Academy of Sciences' Membership Diploma Presented to Scottish Mathematician James Stirling (1747)
James Clerk Maxwell Autograph Letter Signed, Requesting a Copy of George Eliot's Middlemarch on His Return to Cambridge
Dmitri Mendeleev Autograph Letter Signed - Coveted Handwritten Letter from the Russian Chemist and Inventor
William T. G. Morton Autograph Letter Signed - The Pioneer of Surgical Anesthesia
Alfred Nobel Autograph Letter Signed: "For each letter you get, I receive at least two hundred, and in different languages"
Robert Oppenheimer Autograph Letter Signed
Louis Pasteur Handwritten Manuscript on Rabies Experiments: "Do dogs exist (as a race or individually) that are naturally immune to rabies?"
Louis Pasteur (2) Signed Items - Autograph Letter and Book on Silkworm Disease
Ivan Pavlov Autograph Letter Signed: "I would like to talk to you about work and dogs"
Ivan Pavlov Twice-Signed Autograph Letter as a Medical Student
Joseph Priestley Partial Autograph Letter Signed - Scarce Letter from the Discoverer of Oxygen
Wilhelm Rontgen Autograph Letter Signed - The Discoverer of X-rays
Wilhelm Rontgen Letter Signed from the Year of His X-ray Discovery, Preparing to Defend His University's Botanical Garden
Nikola Tesla Autograph Letter Signed
Alessandro Volta Autograph Letter Signed
John Wallis: A Treatise of Algebra, Both Historical and Practical (1685)
James D. Watson (2) Signed Items - Typed Letter and Draft of His Book Manners for Science (Avoid Boring People)