engines. Several hundred were built by Bristol Siddeley Engines Ltd after that company took over Armstrong Siddeley's manufacturing activities in 1959. See also List of aircraft engines List of car manufacturers of the United Kingdom Notes References Citations Bibliography Further reading Robert Penn Bradly: Armstrong Siddeley, the Post War Cars; Motor Racing Publications, Croydon, 1989. Robert Penn Bradly: The 346 Sapphire explored to great depth; Pimula PTY Pvt., Bardwell Park, NSW, 2008. Bruce Lindsay: Armstrong Siddeley, the Sphinx with the heart of a lion; Lindsay family trust, Thailand, 2010. External links Armstrong Siddeley Owners Club for the cars Non-affiliated Internet forum for Armstrong Siddeley enthusiasts world-wide Defunct motor vehicle manufacturers of the United Kingdom Defunct engineering companies of England British companies established in 1919 Coventry motor companies Rocket engine manufacturers of the United Kingdom Defunct aircraft engine manufacturers of the United Kingdom Vehicle manufacturing companies established in 1919