active 1960s-current (2010), astronomical observatory, Apache Point, New Mexico, United States Apache Point Observatory
active 1774-1835?, telescope maker; scientific instrument maker, active London, British Watson, James
1792-1871, mathematician and astronomer, English; British Herschel, Sir John Frederick William 1792 - 1871
1835-1955, opticians, optics and photographic and camera maker, Birmingham J Lancaster and Son 1835 - 1955
active 1920s -1960s telescope maker, retailer, London, England. Broadhurst, Clarkson and Company Limited
active 1789-1825, optician nautical instrument and telescope maker, English; British Cary, William 1759 - 1825
active 1791-1816, globe seller, optician, nautical instrument & telescope maker, London, England John and William Cary 1791 - 1816
active 1940/50s-1988, optical instrument maker (telescopes etc.), Newcastle-upon-Tyne, England Sir Howard Grubb, Parsons & Company Limited
active 1802-1901, optician, mathematical instrument , globe & telescope maker, London, England Thomas Harris & Son
1800-1878, engineer; optician; telescope builder; machinist, British; Irish Grubb, Thomas 1800 - 1878
active 1862-1960s, machine tool and measuring instrument maker, Geneva, Switzerland Societe Genevoise d'instruments de physique
active 1822-1841, optician, mathematical, philosophical & telescope maker, Sheffield/London, England Cutts, John Preston
active 1925-1940/50s, optical instrument maker (telescopes etc.), Newcastle-upon-Tyne, England Sir Howard Grubb, Parsons and Company
1801-1870, optical instrument maker (microscope & telescope), German Steinheil, Carl August 1801 - 1870
1949-current (2011), astronomy observatory, Mount Palomar, California, USA, American Palomar Observatory
1781-1873, instrument maker; artist; optical inventor, English; British Varley, Cornelius 1781 - 1873