Three philatelic souvenirs individually signed by an Apollo 11 astronaut: a printed UN Space Treaty, 8 x 6, entitled "Treaty of the Principles Governing the Activities of States in the Exploration and Use of Outer Space, Including the Moon and Other Celestial Bodies," signed in black ink, “Neil Armstrong”; a printed UN Space Treaty entitled “Agreement on the Rescue of Astronauts, the Return of Astronauts and the Return of Objects Launched into Outer Space,” 8 x 6, signed in black felt tip, “Edwin E. Aldrin, Jr.”; and a printed typescript of the "Nuclear Test Ban Treaty" commemorating the historic signing of the agreement by President John F. Kennedy, 8.5 x 11, signed below in black ink, “Michael Collins,” next to facsimile signatures of Kennedy and others. Each sheet bears an FDC postmark with an affixed stamp. In overall fine condition, with Armstrong's signature quite light but fully legible, with mounting tape to the upper corners. Each is accompanied by a full letter of authenticity from Zarelli Space Authentication.