Laennec's stethoscope
1815-1825
Monaural stethoscope
1840-1850
Foetal monaural stethoscope
1875-1885
Laennec-type monaural stethoscope, France, 1851-1900
1851-1900
Monaural stethoscope
King's monaural stethoscope
Fergusson's monaural stethoscope
King's monaural stethoscope
1890
Monaural stethoscope
Monaural stethoscope
Monaural stethoscope
1801-1900
Monaural stethoscope
1801-1900
A Lloyd Roberts' monaural stethoscope
Crowfoot monaural stethoscope
1827-1870
Wooden monaural stethoscope
circa 1870-1920
Fergusson's monaural stethoscope
Traube's monaural stethoscope
Monaural stethoscope
Monaural stethoscope
Laennec monaural stethoscope
1815-1825
Monaural stethoscope
1850-1860
Wooden stethoscope
1845-1855