"BRITISH MOTORCYCLES SINCE 1950 Volume 4 by Steve Wilson is a comprehensive manual that covers various British motorcycle manufacturers from the 1950s to the 1990s. Published in 1991 by Patrick Stephens Ltd, this paper-based manual delves into the history, specifications, and maintenance procedures for a wide range of British motorcycles. With a focus on owner and operator manuals, this book is a valuable resource for motorcycle enthusiasts looking to learn more about the parts and accessories available for their British bikes."