Extraordinary complete flown "Orbital Science Chart C" flight chart carried on the Apollo 13 mission, folded to 12 x 7.5, comprising multiple large map plates taped together in a loop that, if extended, would be approximately 15 feet in length; this long, continuous first edition chart was taped and folded so that it could be flipped like a book for use in orbit. The main legend, which identifies the chart as "11 April 1970 Launch Date, Orbital science Chart C, SKB 32100082-329," explains the symbols for photography and color-coded flight paths for revolutions 40-46, and is signed in black felt tip by Commander James Lovell, with his surname marked in the border in blue felt tip. In fine condition, with some light edge creasing. Accompanied by a letter of authenticity from Apollo 13 Commander James Lovell, in part: "I hereby certify that this Orbital Science Chart C was on board the Apollo 13 spacecraft. Apollo 13’s perilous flight took off on April 11 and returned safely on April 17, 1970. This chart was from my personal collection of space artifacts and has been in my possession since the mission."
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