Conversation tube hearing aid, also known as a speaking tube, with flexible fabric-covered rubberised tube and ivory or bone earpiece and sound-capturing bell, 1850-1920 Conversation tube hearing aid 1850-1920
Brass swan-shaped ear trumpet, with ivory-like earpiece and very bulbous bell, made by S. Maw, Son & Sons Limited, London, c1900-1932. Swan shaped ear trumpet 1900-1932
Swan-shaped ear trumpet, with engraved brass body and ivory earpiece, similar in style to the 'London dome' design, made by F. C. Rein & Son, London, 1801-1900. Swan-shaped ear trumpet 1801-1900
Brass swan-shaped ear trumpet hearing aid, with ivory earpiece, c1801-1900. Swan shape ear trumpet 1801-1900
Allison's binaural stethoscope, nickel-plated brass body by C. Wright and Co. London, 1885-1896 Allison's binaural stethoscope 1885-1896