Experiments and Observations in Soaring Flight. Offprint from: Journal of the Western Society of Engineers 8 [misprinted “III” on front wrapper], no. 4 (August, 1903). [Chicago], 
FIRST EDITION, offprint issue. Presentation copy with the stamp of the Wrights’ advisor, mentor, and chief promoter, aviation pioneer Octave Chanute. Chanute was the most important figure in aviation from 1890 to 1910
(APOLLO 11.) ARMSTRONG, NEIL and BUZZ ALDRIN
Armstrong and Aldrin raising the U.S. flag on the Moon’s surface. NASA, 
Signed by Neil Armstrong and Buzz Aldrin, the first two men on the Moon. This image was taken by the Maurer Data Acquisition Camera (DAC, pronounced “dak”). The DAC made films through the Lunar Module Pilot’s window during the approach and landing of the LM and took stop motion photographs during the EVA at the rate of one frame per second.
Neil Armstrong on the Cancellation of the Moon Stamp On Board the Apollo XI CSM Returning From the MoonARMSTRONG ,NEIL
Typed letter signed to Dr. Joseph F. Rorke.. Houston, NASA, 15 January 1970.
In this historic letter Armstrong details the history of the Apollo XI in-flight cancellation of the “First Man on the Moon” stamp and of the die famously carried to the moon by Armstrong, Aldrin, and Collins
“I believe the high value of well-bred males is due to their transmitting their good qualities to a far greater number of offspring than can the female.”DARWIN, CHARLES
Autograph Letter Signed to Lawson Tait. Down, 17 January 
CHARLES DARWIN ON SEXUALITY AND THE TRANSMISSION OF HEREDITARY CHARACTERISTICS.
SCHIRRA, WALTER M.
A Complete Set of Schirra’s Flight Log Books documenting his entire career as a Navy pilot and a NASA astronaut. Various places, Jan 1947—Feb 1953; Mar 1953—Jan 1954 (‘duplicate’); Mar 1953—Sep 1958; Oct 1958—May 1967; Jun 1967—Jun 1969
This is a complete set of Wally Schirra’s official flight log books, meticulously maintained by him over more than two decades from his earliest days in training through his fabled career as a fighter pilot, a military test pilot, and one of the “Original Seven” American astronauts.
Apollo 11 Philatelic Cover signed by Neil Armstrong, Michael Collins, and Buzz Aldrin. [Houston], 1969
Signed by the crew of Apollo 11, the first manned mission to the Moon: Neil Armstrong (commander), Buzz Aldrin (lunar module pilot), and Michael Collins (command module pilot). From the collection of Neil Armstrong.
Photograph of the Lunar Module and Buzz Aldrin deploying a scientific experiment on the moon, signed by all three crew members: Armstrong, Aldrin, and Collins and by NASA Administrator Thomas Paine. NASA, 1969
A RARELY SIGNED SPACE PHOTOGRAPH, signed by the crew of Apollo 11, the first manned mission to the Moon: Neil Armstrong (commander), Buzz Aldrin (lunar module pilot), and Michael Collins (command module pilot) and by NASA Administrator Thomas Paine.
“the most valuable work of its kind in existence” inscribed by Charles Rolls to Henri Farman, two aviation giants(FLIGHT.) CHANUTE, OCTAVE
Progress in Flying Machines. New York: American Engineer & Railroad Journal, 1894
FIRST EDITION of the first published systematic collection of aviation research. A spectacular presentation copy inscribed by Charles Rolls to Henri Farman, two giants of early aviation. Farman has heavily annotated the book.
Autograph letter signed to Dr. Elizabeth Blackwell. No place, [August 2], 1871
This splendid letter connects two of the most influential women of the nineteenth century, Florence Nightingale and Elizabeth Blackwell.
(ARMSTRONG, NEIL.) VERNE, JULES
A Trip to the Moon. New York: F. M. Lupton, September 9, 1893
Signed by Neil Armstrong, first man to walk on the moon. This classic of science fiction, turned into scientific fact by Armstrong and the Apollo 11 mission, was first published as De la Terre à la Lune in 1865.