Binaural stethoscope
1871-1950
Binaural stethoscope
Binaural stethoscope
1910-1940
Binaural stethoscope
1910
Binaural stethoscope
Chest-piece from binaural stethoscope
1851-1930
Chest-piece from binaural stethoscope
1871-1920
Chest piece from binaural stethoscope
1861-1930
Binaural stethoscope
1851-1950
Stethoscope, binaural, metal
1801-1900
Binaural stethoscope
Binaural stethoscope
1910-1950
Binaural stethescope, by Hawksley, English, c1920
1910-1930
Binaural stethoscope chest-piece
Bowle's binaural stethoscope chest-piece
Binaural stethoscope
Chest-piece from binaural stethoscope
1861-1930
Chest-piece from binaural stethoscope
1861-1930
Chest-piece from binaural stethoscope
1861-1920
Chest-piece from binaural stethoscope
1871-1930
Chest piece from binaural stethoscope
1870-1920
Wincarnis's binaural stethoscope
Binaural stethoscope
1861-1940
Monaural stethoscope
1891-1950
Binaural stethoscope
1851-1920
Chest-piece from binaural stethoscope
1871-1930
Binaural stethoscope
Binaural stethoscope
Binaural stethoscope
1861-1940
Binaural stethoscope
1861-1920
Binaural stethoscope
1861-1940
Frossard's binaural stethoscope (cased)
Blackwell's binaural stethoscope
1871-1910