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Founded by brothers William and Harold Williamson as a car manufacturer in Coventry in 1899. In 1904 they turned to motorcycles with 456cc single and 726cc twin. Made the first telescopic forks, in 1906 and several other innovations including rotary-valve engines and in 1908 were the first to angle the top tube downward to lower the riding position. Company fired the founders in 1911 and under new boss George Hemingway went on to make own engines, as well as producing a series of JAP-powered machines for Premier. Took over Coventry-Acme in 1919 to become Rex-Acme in 1922. The range included 15 models by 1926, from 172cc to 746cc sizes, but sales were sliding. Sidecar manufacturer Mills-Fulford purchased the company in 1932, but dropped motorcycle production in 1933, and sidecars soon followed