Queen Victoria King Edward VII King George V King Edward VIII King George VI Queen Elizabeth II King George VI Below are a selection of photographs contributed by members of the Group. Click on a thumbnail to view a larger version of the photograph and start the slideshow G6R pillar box cipher. Robert Cole. G6R cipher, Robert Cole G6R lamp box, 1930s, Northern England. Simon Vaughan Winter G6R Ludlow wall box, 1930s, Surrey. Robert Cole G6R wall box, 1930s, North England. Peter Relf G6R pillar box, 1940s, Surrey. Robert Cole King George VI 1936 – 1952 G6R lamp box, 1940s, Essex. Steve Knight G6R wall box cipher. Robert Cole G6R cipher, Robert Cole G6R lamp box, 1930s, Kent. Robert Cole Credit: www.lbsg.org. For high resolution copies please contact the media team.