This personal dosimeter was flown on the Apollo 11 mission in July 1969 and used by lunar module pilot Buzz Aldrin. Dosimeters were designed to measure the cumulative radiation dose each astronaut received during the course of the mission. They were stored in a special pocket of the astronaut's constant wear garment.
Transferred from NASA to the National Air and Space Museum in 1972.
Transferred from NASA Must be offered back to NASA upon deaccession