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Spirc were motorcycles produced by W. W. Crips of Sidcup Hill.
These machines were typical primitives that were produced alongside the firm's bicycles. They probably had braced forks and Minerva engines, and would have been produced in limited numbers.
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