Sally Ride's personally owned STS-41-C Space Shuttle Challenger Robbins medal. Unflown, with serial number ''127'' on rim, along with the Robbins and sterling hallmarks. Features mission insignia in relief on front, with astronauts' names and April 1984 launch and reentry dates on reverse; the mission was delayed one day with the 13 April landing date reflected on the medal. Measures 1.5'', housed in original Robbins case. Near fine condition. With an LOA from CMG Worldwide who represents the Sally Ride estate.