"Aurorascope" battery-operated diagnostic instrument set for ear nose and throat, plated metal, from U.S.A.(?), 1920-1950 "Aurorascope" battery-operated diagnostic instrument set for ear nose and throat 1920-1950
Set of electrically illuminated diagnostic instruments, in case, with batteries, by Gowlland, English, 1930-1976 Set of electrically illuminated diagnostic instruments 1930-1976
Diagnostic instrument set, comprising 3 aural speculae, 1 electric, 1 ophthalmoscope, 1 laryngeal mirror with light, in leather case, by A. L. Hawkins and Co., 66 New Cavendish Street, London, England, 1901-1930. Diagnostic instrument set 1901-1930