“Marlowe-Grafton” Wikipedia Commons, 24 June 2008, commons.wikimedia.org/wiki/File:Marlowe-Grafton.jpg. Accessed October 2017
Espionage image
“Marlowe-Grafton” Wikipedia Commons, 24 June 2008, commons.wikimedia.org/wiki/File:Marlowe-Grafton.jpg. Accessed October 2017