Ear trumpet made from an animal horn
1701-1900
Brass ear trumpet
1801-1900
Telescope ear trumpet
1850-1900
Small crescent-shaped metal ear trumpet
1850-1930
Hearing aid
1850-1910
Conversation tube hearing aid
1801-1900
Tin plate ear trumpet
1850-1900
Part of a hearing aid
1801-1900
Ear trumpet hearing aid
1801-1900
Conversation tube hearing aid, Europe, 1850-1920
1850-1920
Swan shaped ear trumpet
1850-1900
Ear trumpet hearing aid
1801-1900
Swan-shaped ear trumpet
1801-1900
Hearing aid
1801-1900
Conversation tube hearing aid
1840-1900
Conversation tube hearing aid
1840-1900
Small ear trumpet
Brass ear trumpet, English(?), 19th century
1801-1900
Ear trumpet
1801-1900
"Emitome" hearing aid
"Emitome" hearing aid
"Emitome" hearing aid
"Emitome" hearing aid
Telescopic ear trumpet
1840-1900
Double ear trumpet with headband
1850-1928
Telescoping ear trumpet
1870-1900
Ear trumpet hearing aid
1801-1910
Two bells from hearing aids
1801-1900
Conversation tube hearing aid, probably English, 1870-1895
1870-1895
Conversation tube hearing aid
1801-1900
Conversation tube hearing aid, probably English, 1801-1900
1750-1840
Conversation tube hearing aid
1801-1900
Steel telescoping ear trumpet
1840-1920
Ear trumpet
1850-1900
Aluminium ear trumpet
1870-1917
Conversation tube hearing aid
1880-1935
Conversation tube hearing aid
1880-1931
Conversation tube hearing aid
1870-1930
Conversation tube hearing aid
1801-1910
Conversation tube hearing aid
1840-1900
Conversation tube hearing aid
1750-1840
Silver plated telescoping ear trumpet
1800-1850
Silver plated ear trumpet
1840-1970
Tortoiseshell Ear Trumpet Hearing Aid
1801-1900
Miniature ear trumpet hearing aid
1801-1900
Silver ear trumpet hearing aid
1829
Two OL65 hearing aids with one earphone and two earmolds
1969
Small japanned ear trumpet
1801-1900
Steel ear trumpet, Europe, 1850-1916
1850-1916
Conversation tube hearing aid
1851-1900