


Monaural stethoscope

Piorry monaural stethoscope and pleximeter (?), Eu
1830-1840

Crowfoot monaural stethoscope
1827-1870

Laennec monaural stethoscope, European, 1801-1839
1801-1839

Monaural stethoscope

Piorry monaural stethoscope by Lindsey
1830-1840

Stethoscope, England, 1834-1840
1834-1840

Piorry monaural stethoscope
1830-1840
