Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,404 pages of information and 233,863 images on early companies, their products and the people who designed and built them.
Emerald was a motorcycle produced circa 1903.
In common with many other bicycle dealers of the early days, this company added a motorised version to their range. The name appeared on a machine that had a sturdy cycle loop frame fitted with a 1.75hp or 2.75hp engine and a two-speed gear in a simple transmission.
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