Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 133,811 pages of information and 211,901 images on early companies, their products and the people who designed and built them.
Contrast-JAP was a motorcycle produced in 1911-1912.
Little information is available regarding this marque as it was a rare make not seen at shows or found on lists.
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