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.
Hammond was a motorcycle produced in Croydon, Surrey, by a gentleman of that name.
Small advertisements to sell the 2hp machines were placed in magazines. Probably an established cycle dealer selling early primitives.
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