active 1865-1900, mathematical & drawing instrument maker, London, England Stanley, William Ford 1829 - 1909
d. 1853, active 1804-1849, optician & drawing instrument maker, English; British Elliott, William Unknown - 1853
active 1826-1842, optician optical, mathematical & drawing instrument maker, London, England Wright, Thomas
active 1840-1855, optician, philosophical & drawing instrument maker, London, England William Harris & Son
active 1850-1853, optical, mathematical, philosophical & drawing instrument maker, London, England W Elliott and Sons
active 1900-1990s, opticians, drawing & mathematical instrument maker, London, England, British W F Stanley and Company Limited
active 1885-1988, surveying & drawing instrument manufacturer, Aarau, Switzerland Kern and Company AG