1969-07-16 USA Apollo 11

Apollo 11 official NASA cachet on cover with a Kennedy Space Center machine cancel. Hand-painted cachet by Alec Bartos, the Romanian Astrophilately Chairman, visual artist and stamp designer. Alec painted this cover with contents carried in Armstrong's Personal Preference Kit (PPK) - a piece of wood from the Wright brothers' 1903 airplane's left propeller, a piece of muslin fabric from its upper left wing, a gold olive branch pin that was left on the Moon's surface.
Apollo 11 crew-signed cover with a small stick-on Apollo 11 emblem label. The autographs by Michael Collins, Buzz Aldrin and Neil Armstrong were likely obtained before the Apollo 11 flight, later affixed with an "Apollo 8" 8¢ U.S. stamp and cancelled July 16, 1969 (the date of the launch) with Kennedy Space Center machine cancel. It is believed that this cover was once owned by space cover collector, Amanda Hoerschgen.
Apollo 11 crew-signed "Type 2" Dow-Unicover Insurance Cover with an "Apollo 8" 8¢ U.S. stamp affixed and cancelled July 16, 1969 (the date of the launch) with Kennedy Space Center machine cancel. Signed by Michael Collins, Neil Armstrong and Buzz Aldrin.
On July 21, 1969, at 12.56 pm Australian Eastern Standard Time (i.e. July 20, 1969, at 10:56 pm EDT), 600 million people around the world watched Neil Armstrong first step on the Moon. Eight and a half minutes after those first historic images were broadcast, NASA chosen Parkes (due to its superior image quality) as the source of the remaining two hours and 12 minutes of live broadcast. Above cover with a stamped CSIRO ANRAO Parkes cachet, cancelled at Parkes on July 21, 1969 at 12:30pm.
TV images of Neil Armstrong (the commander of Apollo 11), the first man to walk on the moon.
Apollo 11 First Man On The Moon (Space City Cover Society) cover cancelled with a Houston postmark on July 20, 1969. Signed by Neil Armstrong, the first man on the moon.
TV image of Neil Armstrong and Buzz Aldrin on the moon.
Apollo 11 crew-signed "Type 1" Insurance Cover originally from the personal collection of mission lunar module pilot Buzz Aldrin. This "NASA Manned Spacecraft Center Stamp Club Official Commemorative Cover First Manned Lunar Exploration" with a color cachet, 6.5" x 3.625", has an "Apollo 8" 8¢ U.S. stamp affixed and cancelled July 20, 1969 (the date of the moon landing), at Houston, Texas. Signed by Neil Armstrong, Michael Collins and Buzz Aldrin, all in blue felt tip to the right of the cachet.

This cover was given directly to the consignor in June 1986 at Warsaw, Poland by Dr. Aldrin in appreciation for the three days he spent in his home. They had a mutual friend and Aldrin stopped in Warsaw on his way from Moscow back to the United States to visit Poland. The consignor met him at the airport, opened his home to him, and aided him in getting around the city for meetings.- Heritage Auctions
Apollo 11 crew-signed "Type 1" Insurance Cover originally from the personal collection of mission lunar module pilot Buzz Aldrin, with signed LOA. This "NASA Manned Spacecraft Center Stamp Club Official Commemorative Cover First Manned Lunar Exploration" with a color cachet, 6.5" x 3.625", has an "Apollo 8" 8¢ U.S. stamp affixed and cancelled July 20, 1969 (the date of the moon landing), at Houston, Texas. Signed by Neil Armstrong, Michael Collins and Buzz Aldrin, all in blue felt tip to the right of the cachet. This cover is mounted to a signed Letter of Authenticity on Aldrin's personal letterhead. 

This is one of the three designs of the Apollo 11 insurance cover, a tradition that began with this flight. The astronauts would all sign a certain quantity of these covers to be left on Earth as a contingency against their failing to return safely from the moon. In the case of a tragedy, the covers would be sold with the proceeds benefiting their families, not unlike an insurance policy. - Heritage Auctions
The Apollo 11 astronauts carried to the moon a blank cover affixed with an imperforated C76 moon landing stamp and a postal rubber stamp stating "MOON LANDING JUL 20 1969 USA". Due to the busy schedule to complete various tasks on the moon, the astronauts forgot to postmark the unique cover on the moon. The postmarking was done while on their return to earth on July 22, 1969. Before the actual  flight of Apollo 11, Dr. Matthew I. Radnofsky simulated cancelling in space in his laboratory. He prepared four proof covers as well as 150 specimens for philatelic reference.

Top: Specimen cover no. 35 of 150, with a "MOON LANDING JUL 20 1969 USA" postmark applied by Dr. Matthew I. Radnofsky for philatelic reference before the actual flight of Apollo 11.
Bottom: Reverse of the same cover shows a "Webster Aug 11, 1969" machine postmark and a "Delayed in Quarantine at Lunar Receiving Laboratory, M.S.C - Houston, Texas" handstamp cancelled on the back of the cover. These were later applied on the 214 covers that were flown to the moon, carried by Armstrong, Aldrin and Collins in their Personal Preference Kits. - Auktionshaus Felzmann
Columbia entered Earth's atmosphere at 12:35 p.m. on July 24, 1969, at times heating up so much that communications were interrupted by the supercharged atmosphere surrounding the spacecraft. Houston Mission Control starts calling Apollo 11 after 4 minutes of blackout as the spacecraft re-enters earth.
All went as planned, the crew safely splashed down in the Pacific Ocean at 12:51 p.m., about 950 miles (1,527 kilometers) southwest of Honolulu and only 15 miles (24 kilometers) from recovery ship USS Hornet. Above USS Hornet CSV-12 recovery ship postcard with Beck rubber stamped cachet, hand cancelled on July 24, 1969.
After the drogue chute deployed, the recovery forces took over the airwaves to communicate with the Apollo 11 crew.
Top: USS Hornet recovery ship cover with Beck rubber stamped cachet and hand-painted splash-down cachet by artist Detlev Van Ravenswaay.
Bottom: Apollo 11 US Navy Recovery Force cover with printed cachet of splash-down. USS Hornet machine cancelled July 24, 1969.
Apollo 11 Orbit Covers with Beck rubber stamped cachet. The USS Hornet machine cancel is a variation with centered AM time slug. Signed by William R Carpentier, the NASA flight surgeon who gave the astronauts a verbal physical check when they were hoisted up to the recovery helicopter one at a time.
Top: Apollo 11 USS Hornet Captain's cover with USS Hornet hand cancel. 6,000 copies of this envelope were produced by the ship's commanding officer. Signed by Captain Carl J. Seiberlich.
Bottom: Apollo 11 USS Hornet Captain's cover with USS Hornet machine cancel. Double-printing of the ship on lower right of the cover.
Beck printed cachet cover B804 cachet was meant for USS Goldsborough, but this one went to USS Hornet. Only one observed, it could be unique. 
Apollo 11 USS Hornet recovery ship cover attached with a small piece of flown Kapton foil from the Apollo 11 Command Module.
Apollo 11 USS Hornet recovery ship covers with a variation of hand cancel without the AM time slug.
Top: Apollo 11 USS Hornet recovery ship cover attached with a sample piece of the orange flotation collar.
Bottom: Apollo 11 USS Hornet recovery ship cover signed by William Pierce Rogers, who served as President Richard M. Nixon's Secretary of State from January 22, 1969, until September 3, 1973.
Apollo 11 USS Hornet recovery ship covers with a variation of hand cancel that has AM time slug above the year 1969. The commonly found hand cancel has AM time slug below the year 1969.
USS Arlington (AGMR-2) served as President Nixon's "Floating White House" during the Apollo 11 recovery. While USS Hornet was the primary recovery ship, USS Arlington provided communications support. After the Apollo 11 recovery both ships steamed for Pearl Harbour with Hornet arriving first. While most USS Arlington ship covers have a Honolulu postmark, only a small quantity cancelled with "USS Arlington" as shown here.