Hal-Hen advertising photo, ca. 1952
Beltone eyeglass aid photo, 1960
Man modeling a hearing device in a vest pocket, for Sonotone advertisement, circa 1950.
Woman wearing decorative earring, for Sonotone advertisement, circa 1950.
Conversation tube, 1796 or 1805.
Phonac Model C, ca. 1928
Acousticon Model 56, ca. 1928
"Staniland" model canteen receptor.
London dome hearing trumpet, 19th century
London dome hearing trumpet, 19th century
Precision Model 3AC21 table aid, ca. 1948
Booster-Duotone, 192-
Struycken monochord, 1910
Centerpiece receptor, ca. 1802
Bernafon Audioflex 300, 1997
Songbird Disposable Hearing Aid, 2000
Phonak Claro BTE and Remote Control, 2000
Phonak Watch Pilot Remote Control, 2000
Paravox Model J "Tiny-Myte", ca. 1949
Sonotone Model 940, ca. 1948
