active 1790-1820, mathematical, philosophical, nautical & optical instrument makers, Paris, France Jecker, Francoise-Antoine 1765 - 1834
1897-1948, optical, mathematical & philosophical instrument maker, London, England Ross Limited 1897 - 1948
active 1850-1869, philosophical, chemistry & mathematical instrument/scale maker, London, England Ladd and Oertling 1849 - 1869
1859-1897, optical, mathematical & philosophical instrument maker, London, England, British Ross and Company 1859 - 1897
1695-1766, active 1720-1750, mathematical, philosophical, optical instrument maker, London, England Cole, Benjamin 1695 - 1766
1821-1895, optician, philosophical & photographic instrument maker, London, England Ackland, William 1821 - 1895
1768-1816, active 1789-1816, mathematical, optical and philosophical instrument maker, English Barnett, Thomas 1768 - 1816
active 1835-1875, optician, philosophical & mathematical instrument maker, Liverpool, England Adie, Richard 1810 - 1881
active, 1812-1856, optical, mathematical, philosophical & nautical inst. maker & optician, British Newman, John Frederick 1783 - 1860
active 1808-1847, compass maker; optician & mathematical, philosophical instrument maker, London, England, British Bate, Robert Brettell 1782 - 1847
active 1818-1856, optician, optical, mathematical & philosophical instrument maker, London, England Watkins & Hill 1818 - 1856
1792-1841, active 1823-1841, optician, mathematical & philosophical instrument maker, British Robinson, Thomas Charles 1792 - 1841
1746-1815, active 1774-1803, optical, mathematical & philosophical instrument maker, Scottish Miller, John 1746 - 1815
1798-1860s, philosophical and scientific instrument maker; mechanist, English, British Reid, William 1798 - 1869
1750-1795, [Adams the Younger] active 1772-1795, mathematical instrument maker; globe maker, English; British Adams, George 1750 - 1795
active 1841-1845, optician, optical, mathematical & philosophical instr. maker, Manchester, England Abraham and Dancer 1841 - 1845
active 1820-1852, optician; optical, mathematical, astronomical & philosophical instrument maker Dollond, George 1774 - 1852
1731-1820, active from 1750, optical instrument maker, scientific instrument maker, British Dollond, Peter 1731 - 1820
active 1851-1899(?), optician, meteorological, mathematical & philosophical instrument maker, London Pastorelli and Company 1851 - 1899
1808-1914, optical, mathematical & philosophical (globes) instrument makers, London, England, British Carpenter and Westley 1808 - 1914
active 1805-1822, optical, mathematical & philosophical instrument maker, British Beale, John 1805 - 1822
active 1830-1859, optical, mathematical & philosophical instrument maker, English; British Ross, Andrew 1798 - 1859
active 1853-1921, optical, mathematical, philosophical & electrical inst. maker, London, England Elliott Brothers 1853 - 1921
active 1840s-1860s, optician, mathemathical & philosophical instrument maker, Brighton, England Dixey, Lewis 1814 - 1895
active 1834-1851, optician, magnetician, mathematical instrument maker; philosophical instrument maker; engineer, Irish Clarke, Edward Marmaduke 1806 - 1859
1812-1887, active 1835-1878, optician, optical, mathematical & philosophical instrument maker, British Dancer, John Benjamin 1812 - 1887
1818-1893, philosophical, chemistry & mathematical instrument maker; scale maker, London, England Oertling, Ludwig 1818 - 1893
1708-1772, active 1731-1770, optician, optical instrument & microscope maker and seller, London, England, English Cuff, John 1708 - 1772
active 1749-1806, sundial maker; optical, mathematical, philosophical inst. maker & natural philosopher, British Nairne, Edward 1726 - 1806
1830-1859, optical, mathematical & philosophical instrument maker, London, England, British Andrew Ross and Company 1830 - 1859
1709-1772, active 1734-72, mathematical, philosophical & optical instrument maker, lecturer, English Adams, George 1709 - 1772
1674-1702, active from 1695, mathematical, philosophical & nautical instrument maker, English Tuttell, Thomas 1674 - 1702
active 1774-1783, mathematical, nautical & philosophical instrument maker, Augsburg, Germany G F Brander and Höschel 1774 - 1783
active 1808-1833, optical, mathematical & philosophical (globes) instrument maker, English Carpenter, Philip Unknown - 1833
active 1820s-1847, mathematical, philosophical, nautical & optical instrument makers, Paris, France Jecker Frères Unknown - 1847
active 1802-1850s, philosophical and scientific instrument maker, active London, England Becker, Christian Unknown - 1856
d.1791, active 1751-1791, optical, mathematical & philosophical instrument maker, English; British Gilbert, John Unknown - 1791
active 1654-1697, mathematical, optical and philosophical instrument maker, English Brown, John Unknown - 1697
active 1860-1905/6, mathematical, optical & philosophical instrument maker, London, England, British Casella, L. P.
active 1849-1885, optician, spectacle & optical, mathematical, philosophical inst. maker, English West, Francis Linsell
active 1822-1853, mathemamatical, optical, philosophical and scientific instrument maker, British Wrench, Edward
active 1883-1886, nautical, mathematical, philosophical & optical instrument maker, Paris France Duboscq and Pellin
active 1820-1835, optician, mathematical, philosophical & optical instrument maker, London, England Ebsworth, Richard
active 1814-1830, optician; mathematical instrument maker; philosophical instrument maker, English Dowling, William
active 1825-1865, optical, mathematical & philosophical instrument maker, Newcasle on Tyne, England Cail, John