
Lord Kelvin's 'ironclad' marine galvanometer, 1865-1866
1865-1866
1865-1866
1862
1801-1840 (original); 1901 (model)
1866
1860
2000-100 BCE
1864
1860
circa 1868
1861-1866
circa 1861
1865
1863-1865
1861
1861
1865
1867-1868
1955; 1830
1862
circa 1860
circa 1861
1862
1867
1867
1867
1865
1893-4
1866
1934
1863-7
1860
1860
1860
1867
1862
1865
1775-1799 (original); 1900-1907 (model)
1839 (original); circa 1988 (replica)
1862
1865
1868
1772 (original); 1919 (model)
4000-2001 BCE
circa 1860
1860
circa 1860
1860
1990-96
1830 (original); 1967 (model)
circa 1860