A picture on two pages of "The Night Hamburg Died", Martin Caidin, Four Square/New English Library, London, 1966. Originally published in USA by Ballatine Books, Inc, 1960

Text on the previous page reads:

(Next page) The heart of the firestorm area; a picture taken by the Germans soon after the attack. The buried vehicles are gutted firetrucks that had to be abandoned because of the heat. National Fire Protection Association

(Note that Caidin has worked for US "intelligence":

In Japan for two years with the Intelligence and Public Information offices of the U.S. 5th Air Force, Mr. Caidin toured the devastated Japanese cities, and spent much time in Hiroshima, where the world's first atomic bomb used in the war was dropped.