RR Auction: Science and Technology Auction

Superb grouping from pioneering French aircraft designer and builder Louis Charles Breguet (1880–1955), remembered for his Breguet XIX which crossed t

TLS in French, signed in pencil, “Louis Breguet,” one page, 8 x 10.5, personal letterhead, May 1, 1917. Letter to "Monsieur Riffard," in p...

Fantastic group of five items associated with pioneering aviator and polar explorer Richard E. Byrd (1888–1957), who in 1927 made a transatlantic flig

Two booklets related to George Cayley (1773-1857), a prolific English engineer and one of the most important people in the history of aeronautics: an

Unusual collection of photographs associated with aviation pioneer Clarence Chamberlin and his famous passenger Charles A. Levine, who he took on the

Original vintage matte-finish 4.5 x 6.25 photograph of Clarence D. Chamberlin and Lloyd W. Bertaud holding up a large kite, stamped with an "Ag...

Collection of nine items relating to the 1910 and 1911 Coanda aircraft, a sesquiplane and precursor to the motorjet that was designed by Romanian inve

Grouping of material related to the Curtiss NC-4 flying boat, the first aircraft to fly across the Atlantic Ocean. The group is highlighted by a one-p

Original vintage glossy 7 x 5 photograph of Amelia Earhart posing with a bouquet of flowers beside German aviator Gerhard Fieseler. In fine condition.

Fascinating photograph collection of pre-World War I early gliders and aviation pioneers, ranging in size from 3.5 x 2.25 to 7 x 5, with the majority

Archive of original photos and patents relating to the work of French aircraft designer and spaceflight theorist Robert Esnault-Pelterie, which includ

Anglo-French Grand Prix motor racing champion, aviator, and an aircraft manufacturer and designer (1877–1964). ALS in French, signed “M. Farman,” one

Flown airmail cover carried on the first flight of the Douglas D-558-2 Skyrocket on February 4, 1948, signed in blue ballpoint by the pilot, "J...

Two flown covers carried on experimental aircraft, both with stamped cachets filled out with information on the flights, signed by the respective pilo

Group of five airmail covers flown on experimental helicopters, all with stamped cachets filled out with information on the flights, signed by the res

Group of nine airmail covers flown on military jets, all with stamped cachets filled out with information on the flights, signed by the respective pil

Group of eight airmail covers flown on United States military aircraft, all with stamped or typed cachets filled out with flight information, signed b

Group of six airmail covers flown on passenger jets, all with stamped or typed cachets filled out with information on the flights, signed by the respe

Rare flown airmail cover with a stamped cachet reading, "U. S. Missile Mail, May 1, 1959, Point Mugu, Calif.," postmarked at Point Mugu, C...

Two flown covers carried on flights by USAF astronauts who never went to space, both with cachets filled out with information on the flights, signed b