Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 133,395 pages of information and 211,465 images on early companies, their products and the people who designed and built them.
of 30 Dean Street, Birmingham
of Dunkley House, 76 Houndsditch, London, EC
of 224 Great Western Road, Hounslow, Middx. Telephone: Hounslow 6325. Cables: "Dunklycars, Hounslow"
1878 Company established.
1896 Dunkley invented a vehicle powered by compressed gas
1897 January. Description and image of the gas-engined autocar.
1897 June. Details and image of the compressed gas car.
1901 Produced a more conventional looking car powered by coal gas.
1906 Incorporated as a Private Limited Company.
1914 Manufacturers of Perambulators, Bath Chairs, Wheels, Motors, and Flying Machines. Specialities: The "Dunkambulator" and Dunkley's Patent Ball Bearings for Wheels of all kinds of Tramways, Motors, Bath Chairs, etc., Motors for Aeroplanes. 
1918 HENRY DUNKLEY, of the Dunkambulator Works, 75, Jamaica Row, City of Birmingham, in the County of Warwick, Manufacturer, do hereby declare the nature of this invention to be, as follows: This invention relates to the improvements hereinafter described, in canopies for perambulator and other like carriages, and has reference to that class of canopies in which an umbrella like frame is used to form the canopy
1929 Listed Exhibitor. Manufacturers of Baby Carriages, Perambulators, Hospital and Invalid Furniture, Invalid Carriages, Folding Perambulators, Push Carts and Wheels of all kinds. (Stand Nos. A.1 to A.4) 
1947 Listed Exhibitor - British Industries Fair. Manufacturers of a Restricted Range of Perambulators including New Model whose production depends upon availability of materials, also Toy Miniature of Popular Model and Ingenious Baby Chair. (Olympia, 2nd Floor, Stand No. J.2279)