These Color photos of London, spanning from the dark days of the Blitz to the triumphant celebrations of VE Day, were taken in Dufaycolor, a little-known photography process. They give another perspective on the period between 1943 and 1945 when Nazi Germany carried out a sustained aerial bombing campaign against Britain.

Introduced as cinematic film in 1932 and roll film in 1935, Dufaycolor was based on a four-color screen process developed by French chemist Louis Dufay. It was one of the last additive color processes to be marketed, consisting of a fine screen of red, green and blue filter lines printed over a film emulsion.

Though it was popular among professional and amateur photographers until the 1950s, Dufaycolor was ultimately surpassed by Kodachrome and other superior color processes.