The Original Collier Trophy, Awarded to Inventor William Lear for his Invention of the First Jet Autopilot
The Manuscript Observations and Calculations Relating to Time, Longitude and Latitude of Early University of...
Joseph Putnam’s 1827 Patent For Stone Piping, an Advance Over Then-Used Wooden Pipes
An Extraordinary Letter Connecting Albert Einstein and Sigmund Freud, Whose Work Had a Revolutionary Impact on How...
A Rare Signed Engraving of Louis Pasteur, Inscribed to a Noted French Publisher
Dr. Oliver Wendell Holmes Arranges to Meet With Dr. William Osler
Samuel F.B. Morse Works to Build the First Telegraph Line
The Founding of the Smithsonian: Catalogue Card No. 1 of the Scientific Collection of the Benefactor of the Smithsonian...
Signed photograph of Charles A. Lindbergh, Showing Him With His Plane the Spirit of St. Louis
A NASA Project Mercury Brochure With Photographs of the First Americans in Space - The Mercury 7 - Signed by All
Thomas Edison Gives Instructions to His Lab For the Production of Resins Used in His Batteries and Phonograph Records
Orville Wright Assists the National Aeronautic Association in Certifying a New Altitude Record
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