Joseph Erlanger
Buford, James H., Missouri Medical College diploma, 1896.
Hancock, Stephen D., St. Louis College of Physicians and Surgeons Diploma, 1907.
Green, John Jr., State Board of Health, State of Missouri, Certifcate, 1898.
Giberson, Oria Orton, St. Louis College of Physicians and Surgeons Diploma, 1905.
Larkin, Alexander, Certificate of Attendance, 1835.
Brock, A.N., Alumni Association of the Marion Sims College of Medicine Membership Certificate, 1897.
Arzt, Francis Joseph, Humboldt College of Medicine Diploma, 1868.
Allison, Nathaniel, Distinguished Service Medal Certificate, 1925.
Double parabolic ear trumpet, 19th century
Double parabolic ear trumpet, 19th century
Telescoping ear trumpet, 19th century
Black silk material and lace acoustical fan device with metal base, 19th century.
Small ear trumpet, ca. 1800
Black metal conversation tube, 19th century
Black metal conversation tube, ca. 1880.
Acoustic fan, 19th century.
Flower auricle or Aurolese phone, ca. 1802
Artificial hand or elliptical receptor, ca. 1920
Acousticon Model 28, No., 244/4, 1927
