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of Station Works, Wakering Road, Barking, Essex. Telephone: Rippleway 4054. Cables: "Sestrel, Barking". London Office: 71 Leadenhall Street, EC3. (1947)
See Henry Browne
Business commenced in Brightlingsea
1929 Henry Brown died; presumably his son Frank became managing director. Business moved to Barking
1937 Aeronautical instrument makers. "Sestrel" Compasses. 
1939 See Aircraft Industry Suppliers
1947 Listed Exhibitor - British Industries Fair. Manufacturers of Nautical Instruments, Compasses, Clocks, Binoculars, Telescopes, Thermometers, Sounding Apparatus, Aircraft Instruments, Signalling Equipment, Meteorological Instruments, Barographs, Thermographs, Aneroid Barometers, Sextants, Yacht Equipment, Navigational Instruction Equipment. (Olympia, Ground Floor, Stand No. E.1799) 
1950 Frank George Browne (sic), of Barking, and Henry Browne and Son, patented improvements in dial mountings for barometers and other instruments.
1956 Patented improvements in mariners' compasses
1964 Patented binnacle