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of 18 Gray's Inn Road, London
Closely connected with the British Cycle Manufacturing Co
Royal Ajax were motorcycles produced by the Silver Queen Cycle Co, between 1904 and 1906.
The machine was a typical primitive fitted with a 2.5 h.p. engine, upright in a cradle within the frame. It had belt drive and rigid forks and was probably an Alldays and Onions model with a different tank transfer. It was only listed until 1906 and nothing more was heard of it.
1900 Silver Queen and Royal Ajax Cycles. The Silver Queen Cycle Co, Ltd., 221, Tottenham Court-rd., London.
1902 'The Silver Queen Cycle Company, Gray's Inn-road, London, issue an excellent catalogue of their cycles, containing particulars of their easy payment system, machines can purchased on instalments'
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