Backup pilot for the Gemini XI mission; the lunar module pilot for the Apollo 8 mission, the first lunar orbit mission, in December 1968. Anders took a photograph of Earthrise that has became one of the most celebrated of the US space program. He served as backup command module pilot for the Apollo 11 mission, but he left the NASA that year, and he was replaced by Ken Mattingly. Rare TLS signed “Bill,” one page, 7 x 9, Executive Office of the President, National Aeronautics and Space Council letterhead, stamp-dated September 29, 1972. Short letter of congratulations to John Shaffer. In full, “Congratulations on being selected as the 1972 recipient of the Wright Brothers Memorial Trophy. It is well-deserved in recognition of your efforts towards aviation in general and your direction of the FAA. I look forward to seeing you at the presentation.” From June 1969 to 1973, he served as executive secretary for the National Aeronautics and Space Council, which was responsible to the president, vice president and Cabinet-level members of the Council for developing policy options concerning research, development, operations and planning of aeronautical and space systems. In fine condition, with an office stamp to bottom and a couple notations to top. Just the second Anders letter we have ever had, who is scarce in any signed material. COA Scott Cornish and R&R COA.