
Lord Kelvin's 'ironclad' marine galvanometer, 1865-1866
1865-1866
1865-1866
1862
1858
1866
1801-1840 (original); 1901 (model)
1860
1860
1861-1866
circa 1861
1865
1863-1865
1861
1861
1862
1858
circa 1860
1862
1867
1867
1859
1858
1858
1865
1866
1934
1858-03-02
1865
2000-100 BCE
1864
1955; 1830
1867
1893-4
1863-7
1860
circa 1861
1860
1867
1865
1775-1799 (original); 1900-1907 (model)
1839 (original); circa 1988 (replica)
1862
1868
1772 (original); 1919 (model)
circa 1860
1860
1860
1858-1866
1990-96
after 1859
1858