Early binaural stethoscope
1861-1866
1861-1866
circa 1861
1862
1860
1865-1866
1865
1866
1865
1934
1863-1865
1860
circa 1860
2000-100 BCE
1893-4
1867
1863-7
1867-1868
1865
1864
circa 1868
1955; 1830
1860
1862
1862
1867
1867
circa 1861
1990-96
1867
1860
1865
1930 (replica); 1834 (original)
1865-1866
1868
1934
1888
1839 (original); circa 1988 (replica)
1775-1799 (original); 1900-1907 (model)
1862
circa 1860
1860-1866
1705-1737
1862-1866
1870-1877
1860
1865
1865
1860
1772 (original); 1919 (model)
4000-2001 BCE