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Kyrle was a motorcycle produced in 1903 by G. and W. Butcher of Brookend Street, Ross-on-Wye in Herefordshire.
This company claimed to make the engine as well as the cycle parts of the Kyrle. As a cycle business in a rural town, they may have had access to a foundry and machining. They were, however, only short lived.
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