Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 142,857 pages of information and 228,791 images on early companies, their products and the people who designed and built them.
Winster-JAP was a motorcycle produced circa 1927.
This machine was typical of the era, assembled from bought-in parts and fitted with a sv JAP engine. It probably disappeared due to the Depression.
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