'Jedi' Helmet, used with Cryogenic Magnetic Resonance Imaging Machine
1980
1980
1980
1980
1980
1980
1980
c. 1976
1980
1980
1980
1980
1980
1980
1980
1980
circa 1976
1980
1980
1980
1980
1980
1980
1980
1980
1980
1980
1980
1980
1970-1971
circa 1976
1980
1980
1980
1980
1980
1980
1978
1980
1973
1980
1980
1980
1980
1980
1980
1980
1980
1980
circa 1976
circa 1976