"Manmade meteorite" – znak X wykonany ołówkiem zawierającym oryginalny grafit, który był na Księżycu z misją Apollo 15 (prezent od Alana Mazura).

  APOLLO 15 LUNAR MISSION
  JULY 26, 1971 to AUGUST 7, 1971
  The affixed letter X, in the box to the left, 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, including landing on the Moon, and was returned to Earth at the termination of the Mission on August 7, 1971.
  "DECISIONS DETERMINE DESTIATION!"
  Astronaut Jim Irwin, Apollo 15