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of Jena, Germany.
of Margaret Street, Regent's Park, London (1901)
of 13 to 14 Great Castle Street, Oxford Circus, London, W (1914)
Carl Zeiss was an optician commonly known for the company he founded, Carl Zeiss AG. Zeiss made contributions to lens manufacturing that have aided the modern production of lenses.
1846 Company established in Jena, Germany.
1889 The German business was incorporated as the Carl-Zeiss-Stiftung; it gained an international reputation for the manufacture of optical instruments of all kinds.
By 1901 there was a UK representation in London (see advert)
1910 Carl Zeiss exhibited at the Physical Society's Exhibition
1914 Manufacturers of optical and photographic apparatus. Specialities: microscopes, photographic objectives and cameras, prismatic field glasses, astronomical and terrestrial telescopes, range-finders, optical measuring instruments, surveying instruments, ophthalmic instruments, surgical instruments, motor car lamps etc. Employees 5,000. 
Post-WWI the Carl Zeiss brand was represented by Carl Zeiss (London) from c.1926
Also see Carl Zeiss (Germany) for the post-WWII products