Source and copyright
Source: Sea to Surface: Strategic: A Royal Navy Polaris A3 nuclear missile in flight after launch [online]. LIFE ABOARD BRITISH NUCLEAR SUBMARINES DURING THE COLD WAR. Part of CENTRAL OFFICE OF INFORMATION POST 1945 COLOUR TRANSPARENCY COLLECTION. Royal Navy official photographer. London: Imperial War Museum. Colour. © Crown copyright: IWM (CT 2030). Catalogue number CT 2030.
Available at: http://www.iwm.org.uk/collections/item/object/205191110 .
Copyright: (c) Imperial War Museum