Own a piece of space history

Lunar Module Pilot James Irwin saluting the U.S. flag on the moon during Apollo 15. (NASA)

THE GOODWILL DISC A circular silicon disc, 1½ inches diameter, etched lettering "From Planet Earth ... July 1969" visible to the naked eye, and an array of microscopic etching, the reverse matte grey. Est. $5,000 - 7,000 A little-known relic: as well as the American flag and the "We came in peace for all mankind" plaque, Neil Armstrong and Buzz Aldrin also left a silicon disc on the lunar surface. Commissioned by NASA's Electronics Research Center, it carried messages from 73 world leaders, gathered in a frantic rush by NASA and the State Department in the weeks before the launch date. The messages were photographed, reduced 200 times, and etched onto the surface of the disc just like integrated circuits. (Courtesy of Bonhams)

THE APOLLO 15 LMP'S LUNAR SURFACE "YO-YO" Flown on Apollo 15, an EVA Retractable Tether ("Yo-yo"), the main unit approximately 4 x 3 x 1 inches, the clamp 2 x 1½ x 1½ inches. Est. US$50,000-70,000 An EVA Retractable Tether ('Yo-yo') is a small, pull-cord attachment clamp used for general purpose item retention during lunar surface operations. The unit is strapped to the astronaut's suit and readily available for use. The purpose of the Yo-yo was to enable the astronaut to carry certain tools attached to his spacesuit and readily available without having to carry them by hand. This unit was used during lunar surface EVAs by lunar module pilot by Jim Irwin. (Courtesy of Bonhams)

LARGE MODEL OF A SOVIET N1-L3 ROCKET Resin and metal. 56 inches tall x 13½ inches, Scale 1:72 Est. US$8,000-12,000 A striking relic of the Soviet lunar program, development on the N1 rocket began in 1959, under the direction of Sergei Korolev. It was designed to deliver a payload beyond Earth orbit, and ultimately to the Moon. However, due to lack of funding for full-up testing, the N1 never successfully completed a test flight. (Courtesy of Bonhams)

MICHAEL COLLINS' FLOWN CREW-SIGNED APOLLO 11 EMBLEM Flown Apollo 11 Beta cloth crew emblem, 3½ inches in diameter, printed on white Beta cloth 6 inches square Est. US$60,000-80,000 Inscribed by Collins above the emblem with: "Carried to the moon aboard Apollo XI, July 1969," This emblem is one of the very few flown mission artifacts signed by the first man to step on the moon, Neil Armstrong. (Courtesy of Bonhams)

LARGE SPACE PLANE WIND TUNNEL MODEL. Wood and Paint. Circa 1971 33 inches from nose to tail, wingspan 20 inches. Est. US$5,000-7,000 This model of a delta-wing orbiter with twin wing-tip vertical tails is a product of the research that was taking place in the 1970s with the goal of producing a reusable shuttle. This large and striking model was designed for wind tunnel tests. (Courtesy of Bonhams)

FLOWN APOLLO 11 CSM MANEUVER CARD April 5, 1969, updated July 10, 1969. 5½ x 8 inches. Est. US$70,000-90,000 During this period of the mission, the Apollo 11 crew had just successfully entered orbit of the Moon. The card, one of only two used by Armstrong during the mission, contains extensive notations by all three Apollo 11 crewmen and is accompanied by a typed letter signed by Buzz Aldrin. (Courtesy of Bonhams)

THE SPACE MAGNA CARTA. July 17, 1975 Text in English and Russian. 9 x 12 inches. Est. US$60,000-100,000 Nicknamed the Space Magna Carta, this certificate hails from the first successful docking of a US and a USSR spacecraft – the Apollo and the Soyuz - and was signed in space by the cosmonauts and astronauts aboard the respective missions. The text advocating cooperation and peace is written in both Russian and English, and features an illustration of the spacecraft locked together in orbit. This certificate is one of four in existence, another being at the Smithsonian, and is surely the only example in private hands. (Courtesy of Bonhams)

WRIGHT BROTHERS AND THE PATENT WAR. Several documents from between 1911-1913 Est. US$2,000-3,000 This lot is a small group of documents relating to the Wrights' legal battles over patents with Glenn Curtiss and others. The Wright brothers sued Curtiss for infringing their patent by profiting from flying or selling aircraft that used ailerons, and also sued foreign aviators who flew at US exhibitions, including the leading French aviator Louis Paulhan. The patent war came to an end in 1917 when the US Government realized the legal disputes were affecting the supply of airplanes so vitally needed in the ongoing war. The Government stepped in and enforced a patent pool that would lower licensing fees but provide a stream of revenue to Wright and Curtiss. (Courtesy of Bonhams)

LOVELL’S APOLLO 13 BURN NOTES January 6, 1970, updated March 10, 1970. 8 x 5½ inches. Est. US$70,000-90,000 In flight notes made by James Lovell – carried and used during the flight of Apollo 13. Accompanied by a letter from Fred Haise. (Courtesy of Bonhams)

ALDRIN’S FLOWN APOLLO 11 FLIGHT PLAN SHEET July 1, 1969. 8 x 10½ inches Est. US$25,000-35,000 Containing extensive notations by Neil Armstrong, and accompanied by a typed, signed letter from Buzz Aldrin, It is part of the entire document that was carried to the Moon in Command Module Columbia on the first lunar landing mission during July 16 to 24, 1969. This sheet is from the detailed timeline section and covers from hour 157 to the beginning of hour 161 in the mission. (Courtesy of Bonhams)