Armstrong Siddeley
Contains a photo and brief review of the 20 hp Long Twenty.
http://www.samuelsouth.btinternet.co.uk/armsrong.htm

Armstrong Siddeley Car Club Australia
Contains membership details, and photos.
http://www.armstrongsiddeley.org/

Armstrong Siddeley Cars
Features chat, photos, and members cars.
http://autos.groups.yahoo.com/group/Siddeley/

Armstrong Siddeley Owners Club
Contains membership details, photos, events diary, news, and parts finder.
http://www.siddeley.net/

Armstrong Siddeley Owners Club
Contains company history, car specifications, forum and photo gallery.
http://www.siddeley.com

Martin's Armstrong Siddeley
Contains details on owning a 1954 346 Sapphire.
http://www.geocities.com/Athens/Acropolis/5882/carstuff/armstr.htm

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