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Addison Motor Co, 18/20 Addison Street, Liverpool
Addison of Liverpool built motorcycles from 1904 to 1905. They also built the Addison car in 1906.
1903-18 James Harold Atherton was the sole proprietor and works manager.
1904 Built forecars with 3.25hp engines and with air or water cooling. With only single speed, they had chain-drive and a clutch.
Cars: Billed as "the Mercedes of the tri-car world", the Addison was an English automobile built in Liverpool in 1906. The 6½ hp (5 kW) two-cylinder engine was controlled by variable-lift inlet valves.