Piorry monaural stethoscope and pleximeter (?), Eu

1830-1840

Crowfoot monaural stethoscope

1827-1870

Laennec monaural stethoscope, European, 1801-1839

1801-1839

Laennec monaural stethoscope

Monaural stethoscope

Monaural stethoscope

Piorry monaural stethoscope by Lindsey

1830-1840

Stethoscope, England, 1834-1840

1834-1840

Piorry monaural stethoscope

1830-1840

Laennec monaural stethoscope, European, 1801-1860

Laennec monaural stethoscope, European, 1801-1850

Piorry monaural stethoscope

Copy of Laennec monaural stethoscope