"A woman pins a luminous flower to her jacket lapel in Selfridge's department store, London. These flowers were one of numerous blackout accessories available in 1940 to make pedestrians more visible on the dark streets of the capital." A woman pins a luminous flower onto her jacket lapel and consults her reflection at Selfridge's department store in London. These flowers were prettier than the plain button badges and luminous discs that were also available, but did the same job: making the wearer more visible to other pedestrians and motorists on the dark streets of the blackout.