Pressed board telescoping ear trumpet, 19th century
Telescoping ear trumpet, 19th century
Dr. William's pattern ear trumpet, 19th century
Aurolese phone floral tube, ca. 1810
Small ear trumpet, 19th century
Marshall's Collector ear trumpet, 19th century
Conversation tube with pipe-shaped receptor, 19th century
Open ball receptor, 19th century
Circular receptor hearing device, ca. 1875
Flexible conversation tube, 19th century
Simplex Hearing Tube, ca. 1920
Conversation tube, ca. 1860
Hair receptor, 19th century
Artificial concha, ca. 1830
Phono-faradic apparatus, ca. 1897
Phonak Claro BTE and Remote Control, 2000
Struycken monochord, 1910
Aerial view of Ravenel Hospital, Mirecourt, France.
Aerial view of Ravenel Hospital, Mirecourt, France.
Group portrait of medical officers of the Surgical Staff, 21st General Hospital, Mirecourt, France.
