Graham
Graham were motorcycles produced from 1903 to 1904, in Enfield, which is now part of Greater London.
At the late-1903 Stanley Show, the company exhibited their flexible sidecar attachment. One was fitted to a Humber and the other to their own machine, powered by a De Dion engine.
Sources of Information
The British Motorcycle Directory - Over 1,100 Marques from 1888 - by Roy Bacon and Ken Hallworth. Pub: The Crowood Press 2004 ISBN 1 86126 674 X