S71-42951 (August 1971) --- A close-up view of Apollo 15 lunar sample no. 15415 in the Non-Sterile Nitrogen Processing Line in the Lunar Receiving Laboratory at the Manned Spacecraft Center. This sample is the white anorthositic rock (Genesis Rock) collected by astronauts David R. Scott and James B. Irwin at Site no. 7 at a Ground Elapsed Time of 145 hours and 42 minutes, on the mission's second extravehicular activity (EVA).