Sweet, near the end of World War I, Paris planned and began construction on a "Sham Paris," decoy trains, stations, avenues and factories, to confuse German aerial bombers.
Above, a detail from the photo, "Luminous canvas on the ground to represent, to German airmen at night, oneof the great Paris railway stations: The Camouflage Gare de l'Est."
Like the 1920 editors of The Illustrated London News, I would have liked some aerial photos of the deception.
A Paris Made to be Destroyed--Sham Paris, 1917/18 [ptak science books]
Suspiciously related: Maskelyne's Sham Alexandria, or The Greatest Camo Story Ever Told