A graphite pencil “X” made with a pencil carried on board the Apollo 15 mission, written on a 5.75 x 3.75 card printed with the mission emblem and text reading, in part: “The affixed letter X…was made with a Silver Pencil (Serial Number SEB 12100081-301 S/N 1019) utilizing the original graphite that was carried aboard the Apollo 15 mission”; and an unflown 1.5 x 1.5 swatch of the material used to make the Lunar Rover High Gain Antenna, taken from the batch of material used for Apollo 15. In overall fine condition. RR Auction COA.
